Marks by philatelic experts, names S--Z. Briefmarkenprüfer.

NAMES S–Z

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Names A–F, Names G–L, Names M–R, Stamp Forgery Guide,
Areas A–E, Areas F–G, Areas H–R, Areas S–Z, First names.

Signature/name	Expertizing area	Details (b. born, d. dead, f. founded)
S (in blue): genuine overprint	Belgium and Colonies	See Soeteman, additional marks
S. S:berg	Finland	See Strandberg
SA	USA	See Anderson, Spencer
SA (monogram, actually AS)	Ukraine	See Stohmann
Saatchi, Joe ('ST')	Br. occ. Baghdad, Bushire	England, expert 1950s–1980s
Sabban Cohen, Albert	France	See Cohen Sabban, Albert
Šablatúra, Svätopluk (Sablatura)	Czechoslovakia, Bohemia & Moravia, Slovakia, Carpatho-Ukraine (Chust 1944)	Bratislava, b. 1929, SCF 2001
Sabler ('rs')	.	Pre-WW2
Sachse, Dr. Paul ('Dr. Ps.')	Germany, etc.	Germany, dealer or collector
Sadowski, Prof.	Ukraine	.
Sadri, Mehrdad (or manuscript 'MS').	Iran (Persia), Middle East	Glendora CA (USA) 2001, b. 1952, expert 1979–. Note
Saeftel, Dr. Henning	Spain (excl. ovpt 1868–69 & locals)	Henstedt-Ulzburg, BPP 1980
Sahlstedt, Bror-Erik	Estonia	Helsinki, 1918–2004, Finn. Phil. Fed. 1981–94
Saidla, Uno (U.S.)	Estonia	Tallinn, expert c. 1960–95
Salisbury, Steven	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Salmenkylä, Anton. Certif. Photo	Finland (esp. 1975–82)	Helsinki 1961 1974, b. 1910
Salomon, Paul (forged, forged)	Germany (Bizone Bauten, Notopfer, Wohnungsbau, BRD)	Passau 1975, BPP 1961
Salonen, Teemu	Finland (1860, 1866)	Oulu, Finn. Phil. Fed. 2023–
Salvatteci, Aldo	Peru	Peru, b. 1950, AIEP 2003–, [FFE7, PE]
Salz, Richard H.	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
San Giusto, Filatelia. Certif.	Italy, Trieste	Trieste 1956 2002, dealers. Note
Sanabria. Inc. N.Y., 2	Worldwide (air mails)	Nicolas Sanabria Inc, New York NY. Note
Sanchez, Heitor ('Heitor S. Paulo')	Brazil	Sao Paulo 1918 1943 1965, dealer
Sancin, Danilo. Certif. Note	Italy, Trieste	Trieste 1956, expert. Cf. San Giusto.
Sanders, Warren H.	Confederate States	USA 2000
Sandfield, Byron	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Sanhotz Paris (or San Hotz)	Cape of Good Hope, Worldwide?	Dealer?
Sanko ('reference')	Japan (on forged)	See Japan
Saraceni, Gioacchino	Albania	[Mi 1935]
Sarafian, K.	Saudi Arabia (Hejaz)	On forged [APAI]
Sassone, Dr. Luigi	Italy (CLN Aosta issue)	Milan 1943, dealer
Sauer, Erich	Germany (field post Kuban & Krim)	Siegen, BPP 1984
Savarese Oliva, Bruno. Certif.	Italy, and others	Genoa 2001, dealer. Note
Savini, A.	Worldwide (Zeppelin)	.
Sawa, Mamoru	Japan (1871–1912)	Tokyo, 1937–2012, PFJ-EC 1970s–, AIEP 2005–
SB (in purple in SE corner)	Germany (1948 currency reform ovpt)	Seen on genuine stamps
Sberate	Czechoslovakia	Sbêratel means "collector" in Czech
SBPV (in French: ASEP)	Switzerland, Liechtenstein	Schweizerischer Briefmarkenprüfer-Verband (The Swiss Federation of Phil. Experts), [PE]. Note
SCF	Czechoslovakia etc.	Svazu Českých Filatelistů, Komise Expertu f. 1960. Encountered irregularities in Dec. 2003, but was reorganised. [PE]
Schaadt, Ernst. Certif.	Switzerland	Lieli CH 1981
Schäfer, Dr.	Mexico	Meissen 1897
Scheller, Pascal. Certif.	France and Colonies	Paris 2006, dealer
Schenek, Major Alfred	Iran (Persia), Japan, Montenegro, Serbia	Graz 1897
Schenk, Georg	German Colonies, Hungary	On genuine, [Flasch]
Schirnhorn (in script)	Ukraine	Captain, German Army, Ukraine WW1
Schlegel BPP (forged), 2 (forged)	Germany (Mi 338–970, Official Mi 99–177, Berlin, Bizone excl. Bauten, French Zone, BRD)	Hans-Georg Schlegel, Berlin, 1922–2014, dealer, BPP 1976, AIEP 1974
Schlegel, Andreas (forged)	Germany (Allied occ. Mi 911–970, Bizone and BRD), German occ. Libau	Berlin, BPP 1991
Schlegel, Hans-Dieter	Germany (Mi 338–910, Official Mi 99–177)	Berlin, b. 1953, BPP 1990
Schlenger, Karl-Wilhelm	Yugoslavia (1929–); German occ.s of Ljubljana, Montenegro and Serbia; Italian occ. Ljubljana	Krefeld, d. 1987, BPP 1980
Schlesinger, Julius ('J.SCHL', 2). Note. Unidentified Schlesinger	Worldwide	Berlin, 1858–1920, dealer, considered not fully reliable, [Brühl, Tyler]. Advert.
Schloss, J. H.	German States (Thurn & Taxis)	Frankfurt a.M. 1897
Schlosser, Karl	Saar	Saarbrücken 1949. Note
Schmelzer	Turkey, Canada	.
Schmidl, Horst K.	Germany (stamp booklets)	Gröbenzell, BPP 1984–2013
Schmidt	Ukraine	Germany, engineer, [UPNS]
Schmidt, H. (Heinz)	Germany East (Bezirk 1948)	Stade, BPP 1961
Schmidt, W.	German States (Wurttemberg), USA	Hattenheim (D) 1897
Schmitt, Joh. Ulrich	German States (Bavaria), Crete, French and Italian PO Crete, Samos, Ikaria, Albania (Korce), Epirus, Greek occ. issues	Diessen a.A. 2003, Munich, b. 1936, expert 1965–, BPP 1968, AIEP 1982–, [FFE5, PE]
Schmutz, Leslaw. Certif.	Poland, Memel, German occ. Poland	Rzeszów 2000, Polish Fed.
Schneider	Ukraine	Dealer, [UPNS]
Schneider, Albert M.	France (postal history)	Paris, b. 1945, dealer, expert 1972–, AIEP 1988–, [FFE4, PE]
Schneider, H.	Egypt	Pforzheim 1897
Schneider, R.	.	VÖB a.o. member
Scholl	Germany (1945 locals)	.
Schollmeyer, Dr. Wolfgang	France, French Colonies (general issues)	Leipzig, 1931–98, BPP 1991
Schönherr, Heinz-Jörg	Germany East (Mi 212–41, DDR)	Leipzig, b. 1944, BPP 1996
Schønning, Hans (Schonning)	Denmark	Århus 1979, prev. dealer (AFA)
Schöpfer, Klaus (Schopfer, Schoepfer)	Austria and Bosnia & Herzegovina (postal history)	Innsbruck, b. 1948, expert 1993–, AIEP 1998–, VÖB, [FFE3, PE]
Schöyen, Björn A. (Schoyen, Schøyen, Bjørn A.)	Norway (local posts)	Oslo, b. 1962, expert 2002–, [FFE4]
Schramtschenko	Ukraine	See Shramchenko
Schredinsky Paris (or Sredinski)	Russia (South Russia, Wrangel)	See Sredinsky
Schreuders, Dr. F.	Belgium, Netherlands Indies, Orange Free State, Stellaland, Swaziland, Transvaal	The Hague 1897
Schröder, Dr. Arthur (boxed) (+forged), also Schroeder	Estonia (excl. locals), Yugoslavia (pre-1941), Latvia, Hungary, Czechoslovakia, Rumania (Mi 36–), Netherlands (ovpt stamps only)	Lippstadt/W. 1950, Mülheim/Ruhr, 1895– 1968, BPP 1958–, AIEP 1954–68, mark in use c. 1930–60
Schröder, Johannes (Schroder)	Germany (excl. Infla)	Geschendorf 1950, Lubeck, BPP 1961
Schubert	Saar	.
Schuhardt, Hans	Heligoland	Germany (East) 1980
Schüler, Gerhard (Schuler)	Danzig	Hamburg, 1911–81, BPP 1961
Schull, Lew	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Schulmann	Ukraine	.
Schultz-Steinheil, Herman	Sweden	Stockholm 1961, 1895–1976
Schulz, Karl-Heinz	Heligoland	Norderstedt, b. 1946, BPP 1996 –2004
Schulz, Oscar	German States (Mecklenburg-Strelitz), Mexico (pre-1900)	Hamburg, BPP 1961
Schulze, Adolf	Switzerland	Zurich, 1841–1892
Schulze, Hermann	Germany (Mi 115, 118)	Berlin, BPP 1961
Schulze, W.	German States (Lubeck)	Germany, pre-WW2
Schulze-Dirks, Dr. Arno Alex.	Germany East (OPD Prov. Sachsen)	Halle 1948
Schuman, Stephen D.	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Schuman, William O.	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Schumann, Alexander	China	Shanghai, 1930s 40s, dealer, cat. editor
Schumann, Otto A.	Chile, Nicaragua	Berlin-Wilmersdorf 1935, b. 1884
Schupp, Wilhelm	Saar	Sulzbach (Saar) 1949. Note
Schwartz		Paris
Schwarz, Ludwig	Rumania (Moldavia), Austria (Merkur)	Vienna, 1843–1912, [Brühl p.484]
Schweizer, Michael	German occ. Poland (GG)	Köngen, BPP 2004–
Schwendimann, Fred.	Switzerland, Europe (old)	St. Gallen 1949, official expert 1949
Schwenson, Cyril. Certif.	Finland (incl. Aunus, Karelia, North Ingermanland)	Bad Bevensen, BPP 2000, Finn. Phil. Fed. 2010–.
Schwindt, Holger ('HSdt' monogram)	Finland, Worldwide	Helsinki, 1899–1955, FFF exp. comm. 1932–
Scott Stamp & Coin Co ('SS&CCo')	Worldwide	New York, early 20th century, dealers
SDT (in manuscript)	Armenia	See Tchilinghirian
Sebastian, Fritz	German States (NDP)	Hannover 1950, BPP 1961
Sedlak, Ernst	Czechoslovakia	Frantiskovy Lazne (CZ), 1920s.
See, Franz von	.	Austria, 1898–1977, AIEP 1967–77
Seefeldner, Gustav, Prof. GS + heron, 'SG' (in circle)	Austria, Cape of Good Hope, Gabon, Greece, Hungary, Italian States, Iran (Persia); Ukraine (owner's mark)	Salzburg 1896, Vienna pre-1950, UPV, [Wilhelm van Loo]
Seeger, Wolfram	German States (Baden)	Kassel, 1911–83, BPP 1976, AIEP 1975–83
Séfi, Alexander J. (Sefi)	India (Kashmir), Worldwide	London 1926, 1889–1934, dealer, STPA expert.
Seichter, Dr. Rudolf, 2 & supplemental marks (1 & 2: c.1947–60), 3 (c.1960–)	Ukraine	Soltau/Hannover 1950, 1889–1977, BPP 1958–, AIEP 1956–74; mark forged, [UPNS]
Seitz, Anton	Austria, Lombardy-Venetia, Bosnia & Herzegovina	Vienna 1949, 1900–67, dealer, BPP 1961, AIEP 1954–67
Sékula, Béla	Europe	See Székula
Seligson	Finland	Turku?, dealer, in use 1930s
Sellschopp, Wilhelm. Certif.	Germany (Germania issues), etc.	Hamburg 1970, dealer f. 1891
Sem, Peter. Certif.	German States (Thurn & Taxis, Bavaria –1875)	Gundelsheim, b. 1950, BPP 1991
Sempere, José M.	Spain	Barcelona, b. 1947, dealer, expert 1983–, COMEX 1996, AIEP 1998–, [FFE3, PE]
Senabre, (Ricardo?)	Spain (Carlist issues)	Spain
Senf Leipzig, Gebr., 2, 3. Advert.	Worldwide	Dealers f. 1881, Leipzig, [Tyler]. Note
Serebrakian, Souren David, 'SER' (in rectangle). S. Serebrakian Inc.	Carpatho-Ukraine, Ukraine, Armenia, Azerbaijan, Georgia	Monroe NY, in Brussels (1931 1949), 1900–91, dealer, also on forged. Note
Serrane, Fernand	Europe, Worldwide	Nice 1926, 1860–1932, famous expert
Sesö, Sten	Sweden (Värnamo issue only)	Värnamo, reliable certificates
SF	Greece, Epirus	See Spetsiotis Frères
SF + inverted, 2 (in square). Note, 2	Finland (esp. Aunus)	Suomen Filatelistiseura, Helsinki, in use 1922–40s
SFA (in Russian, C Ø A)	Russia, Soviet Union	See Soviet Philatelic Association
SG	Worldwide	See Gibbons Ltd, Stanley
SG (not in oval)	Hungary	See Sipos
SG in circle	Ukraine	See Seefeldner
SG Philatelique	Ukraine	Also on forged
Sharp, Frank	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Shchapov, Peter, 'P.S.'	Ukraine	Moscow c. 1920, dealer, speculator
Sheryer, Richard	Canada, BNA	Mississauga ONT, 1951–2021, dealer, expert 1980–, AIEP 1995–, [FFE3, PE]
Shoemaker, J. Randall	USA, BNA, Br. Colonies	Dealer, Profess. Stamp Experts 1987–
Shramchenko, Capt. Svyatoslav de	Ukraine	Poland, USA, also on forged. Note
Shredinsky (or Shredinski)	Russia (South Russia, Wrangel)	See Sredinsky
Schroedter, Victor	France	Paris 1897
Schumacher, Trond	Norway (locals)	Oslo, expert 2002–. Note
Sibiesco	Rumania	The Nice 1943 dealer?
Siebentritt, Reinhold	German East Africa	Gunzenhausen, BPP 1984
Sieger, H. E	Worldwide (air mails)	Hermann Ernst Sieger, 1902–54, dealers f. 1922, AIEP 1954
Sieger, Hermann W(alter)	Worldwide (air mails), Germany (air mails, Zeppelin), German States (Württemberg), German occ. Poland (GG), Andorra, Liechtenstein	Lorch/Württ. 1950 2003, b. 1928, dealers (Hermann E. Sieger f. 1922), expert 1955–, BPP 1961, AIEP 1956–, [FFE4, PE]
Siewert, John	Russia	Moscow 1897
Sigerist-Moser, E.	Switzerland	Schaffhausen 1897
Silombra, Jean	Worldwide (air mails)	Paris 1961, 1915–98, AIEP 1954–98
Simmermacher, René. Certif.	Greece (Mi 1–157) and PO abroad, Ionian Is. (1859), Serbian PO Kerkyra	Staufen/Brsg. 2003, Freiburg, BPP 1968
Simoes Ferreira	Portugal	See Ferreira
Simon, Dr. Joachim, 2	Germany (air mails, Mi I–IV)	Zwickau, b. 1927, BPP 1991
Simon, Siegfried	German States (Baden)	Karlsruhe 1935, Newark NJ 1950, b. 1895
Sinais, Bertrand	France (postal history)	Paris, b. 1953, dealer, expert 1984–, AIEP 1992–, [FFE3]
Singhee, A(jeet). R.	India	Hyderabad, Philatelic Congress of India president and expert 2001
Sipos, Géza ('S.G.' not in oval)	Rumania/Hungary (Székelyudv. ovpt 1944)	Székelyudvarhely (Odorhieu), [Flasch 40]
Sipos, Zsuzsa	Hungary (pre-1900)	Budapest, 1942–2003, expert 1976–2003, AIEP 1991–2003, [FFE3]
Sips, Zoran	Bosnia & Herzegovina, Yugoslavia (SHS)	Zagreb, CPS 2000–
Sismondo, Sergio. Certif. Note	USA, Canada, BNA, Worldwide	Syracuse NY, 1943–2023, dealer, expert 1993–, AIEP 1999–c.2006, [FFE3, PE]
Sjöman, Per (Sjoman)	Sweden, (Norway, occasionally)	Gothenburg, b. 1905, also on forged. Note
Sk., H.	Danish West Indies	.
Škaloud, Jirí (Skaloud)	Czechoslovakia (Hradcin issue)	Brno, SCF 2001
Skandera, Bohumil ('bsb')	Czechoslovakia	Brno 1949, 1896–1978, dealer –1952. Note
Skweir, J. Michael, also 'CKBIP'	Ukraine	USA, collector, UPNS member
Sloane, George B.	USA (Mark reportedly forged)	New York NY 1926, 1898–1958, dealer
Slovenský Filatelista	Czechoslovakia	Bratislava, f. 1939–, experts: Novotny, Ptacovsky, Kozak, Milos Müller
SM	Europe	See Mantow
SMI	Germany (Marienwerder)	On forged
Smith, Jay. Certif. Homepage	Denmark, DWI, Finland, Iceland, Norway, Sweden; incl. all of their areas	NC USA, dealer, expert under own name 2003–, APS expert
Smith, Peter A. S. (Works as member of committee.)	Egypt, Sudan	Ann Arbor Mich b. 1920, APS expert 1975–, AIEP 2000–, [FFE3 4 6, PE]
Smyrloglou	Greece	Greece
Soc Mis – Marque Garantie	Hungary	See Marque Garantie...
Soecknick, Rüdiger	Danzig, Austria, Bosnia & Herzegovina	Klosterneuburg, BPP 2003
Soeteman, Corneille ('CS', 'Corneille'), additional marks. Certif.	Belgium and Colonies	Brussels 1999, expert committee 1966–, [Soeteman]. Note
Sohn, Emil	Worldwide (rarities)	Frankfurt 1897
Solari, Ing. Alberto	Argentina (Buenos Aires, Corrientes)	Buenos Aires. Note
Solens, Jack	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Soler Antich, Josep (José) (Works as member of committee.)	Spain and Colonies	Barcelona, b. 1952, dealer, expert 1989–, COMEX 1996, AIEP 1998–, [FFE3, PE]
Sommer, Dr. Erwin	Germany and States (Thurn & Taxis among others), Heligoland	Braunwald (Switzerland), 1912–91, BPP 1958–, AIEP 1978–91, forged, on forged
Sommer, Martin-W. (forged)	Germany (Mi 1–30)	Weilburg, BPP 1991 ends 2007
Sommer, Dr. Paul (E.)	Heligoland	Limburg 1950 1961, d. 1963, AIEP 1956–63
Sorani, Silvano. Certif.	Italy (Mi 1–641), Italian States, PO abroad, Colonies and occ.s, San Marino, Trieste A, Vatican	Milan, b. 1934, BPP 1996. Note
Sormul	.	Norway? Estonia?
Soro Bergua, Enrique, 'En Soro'	Spain and Colonies	Barcelona, 1934–2010, expert 1970–, AIEP 1980–, [FFE2 3 6, PE]
Soto Hno (hermanos - brothers)	Uruguay	Uruguay?
Sottoriva, Fabio. Certif.	Italy and areas	Rovereto
Soviet Philatelic Association (SPhA USSR (for export), SPhA (old marks), SPhA (for inland use), 2, 3? Note	Russia and areas, Soviet Union	Moscow. In Russian 'C ф A' = S F A
SP (in circle)	Russia (Siberia)	See Pappadopulo [RJC]
SP. Garan. (in triangle)	Turkey	.
SPA. Certif.	USA, Worldwide	USA 1976, Society of Philatelic Americans, expert committee, (cf. Torrey)
Spalink, Friedrich	German States (NDP and Alsace-Lorraine)	Freiburg, b. 1919, BPP 1976
Spanos, D.	Greece	Athens 1949, dealer
SPC (Stdio Peritale Collezionistico)	Italy and area	Group f. 2008, see Cardillo, Cerruti
Sperati Reproduction	Worldwide	Stamped by BPA on Sperati forgeries
Spetsiotis Frères (brothers) ('SF')	Greece, Epirus	Athens, dealers, on forged & reprinted
SPhA	Russia, Soviet Union, and areas	See Soviet Philatelic Association
Spillner, K.	Germany	.
sprucetree (green; picture of)	Lombardy-Venetia, Austria	See Provera. Note
SR (or RS) (in circle)	Ukraine	.
Šrámek, František (Sramek)	Czechoslovakia	Prague, 1923–99, SCF
Sredinsky Paris (or Schr...) also T Hals S.O. Paris and Hals?	Russia (South Russia, Wrangel Army)	Alexandre S., Paris, pre-WW2, dealer, considered to be a forger. Note
SS (in blue): genuine double ovpt.	Belgium and Colonies	See Soeteman, additional marks
SS&CCo	Worldwide	See Scott
SS:berg	Finland	See Strandberg
St	Germany (locals and OPDs 1945–6)	See Sturm
ST	Br. occ. Baghdad, Bushire	See Saatchi
St. b., E. ('E. St. b.')	Russia (areas)	Also on forged
Stach, Alfons, 2	German States (Bavaria), Czechoslovakia	Prague, New York NY 1939, dealer
Städeli (Stadeli)	Switzerland	.
Stahel, Oskar	Worldwide (air mails)	Zurich 1949, official expert 1949
Staiger, F.	Austria (1945), Montenegro (German occ.)	.
Stallberg, Hermann	Poland	Wermelskirchen 1944, dealer
Stanek	Czechoslovakia	Czechoslovakia, owner's mark?
Stanley Gibbons Ltd	Worldwide	See Gibbons Ltd, Stanley
Star, blue	Cuba	Only seen on forgeries
Starauschek, Friedrich (expert of Heinrich Köhler)	Germany, German States and Colonies, Europe (pre-1900), Worldwide (pre-1900)	Berlin-Tempelhof & Wiesbaden 1950, Berlin-Charlottenburg 1961, BPP 1961
Stastny, Peter	Austria (mint), Germany (1923–45 mint)	Vienna 2010
Steczynsk, M. E.	Poland	Chicago 1950
Steegers y Perera, Juan Francisco	Cuba	La Habana. Reliable expert
Stegmüller, Franz (Stegmuller). Certif.	German States (Baden, Bavaria 1849–75, Oldenburg)	Munich, b. 1972, expert 1999–, BPP 2001, AIEP c.2006–
Steiden, Georg von	Carpatho-Ukraine	Munich 2001, UPNS expert
Stein, Leo - Wien I	Russia, Western Ukraine etc.	Vienna, dealer, forged [Bulat]
Steiner, Dr. Laszlo	Hungary (also on forged)	Budapest, 1906–93, AIEP 1967–93, [Flasch]
Steinway, Theodore E.	Worldwide (pre-1940)	New York NY, 1883–1957, chairman PF
Stella - Odessa	Ukraine	Odesa, dealers, [UPNS]
Stemien, Martin F.	France	New York NY 2001
Stemmler, Winfried	Germany (Bauten Mi 73–100)	Korntal-Münchingen, BPP 2003
Stempel falsch	German area (mainly)	German for "Forged postmark"
Stenger, Prof. Dr. Erich	German States (Bavaria)	Berlin-Charlottenburg, 1878–1957
Stepanow	Russia (Wenden)	Early 1900s, also on forged
Sternwald, Frantisek	Austria	Czechoslovakia, d. 1984, expert 1961–
Steuer, Dr. Friedrich F., 2	German PO abroad (Vorläufer), German PO Levant, German SW Africa	Vienna, d. 1997, BPP 1991
Steuer, Ronald F. Certif., 2	German Colonies and PO abroad	Vienna, b. 1960, expert 1990–, VÖB, BPP 2003, AIEP c.2006–, son of Friedrich Steuer
Steyrer, Christine	Austria	Vienna 2001, catalogue, VÖB member
Stich, Prof. Karl	Austria (1945 locals)	VÖB member 2004
Stiedl, Otto E.	Estonia, Fiume	Vienna 1935
Stilwell, George	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Stock, Ernst	German States, Worldwide	Berlin, dealer 1889–1931
Stodola	Czechoslovakia	Czechoslovakia
Stoebe, Roman	Germany (1918)	Berlin-Köpenick 1950, b. 1883
Stohmann, André; 'Stohm.', 'AS' (device stolen)	Liechtenstein, Ukraine	Vienna, Berlin 1929 as dealer, VÖB 1935 1950, UPV
Stolof (!)	Russia (areas)	On forged
Stolow, J. H., 2, Stolow. Certif. Berlin-Charltbg.: mark, F. S. R. Stolow	Worldwide	New York (Julius & Henry S., 1930s to 1970s), Berlin, Munich (Henry Stolow); also on forged. Note
stork (picture of)	Iran (Persia)	.
Stötzer, W.	Great Britain and Colonies	Berlin 1897
Stoupa, F.	Czechoslovakia	Prague, pre-WW2, dealer
Stout, Douglas W.	Mexico	MEPSI expert committee, q.v.
Strachwitz, Graf (Count Otto von S.)	Heligoland, Italy, etc.	Berlin 1943, dealer (t.a. Philat. Cabinet)
Strandberg, Selim ('S. S:berg')	Finland	Turku, 1889–1942, dealer, in use 1930s
Strandell, Nils	Scandinavia, Bosnia & Herzegovina, Montenegro, Ukraine, and many others	Stockholm 1926 1961, 1876–1963. Note
Straub, Wolfgang. Certif.	Germany (French Zone)	Schöneck, b. 1947, BPP 1996
Strauch, Jenö	Hungary, Rumania (Regatul)	Budapest, dealer, [Flasch]
Ströh, Bodo (Stroh, Stroeh) (forged)	Germany (certain locals and OPDs 1945)	Henstedt-Ulzburg, BPP 1980
STS	Russia (South Russia Kuban Govt)	.
Stuckert Düsseldorff	Germany (1918), Worldwide	Anton S., Düsseldorf-Oberkassel 1943 1950, dealer (firm still existing)
Stupka, Jiri	Czechoslovakia (typo stamps)	Czech Rep., b. 1949, SCF expert 2004–
Sturm, A.	Ukraine	Tallinn, dealer, 1910s 20s, [UPNS]
Sturm, Heinz Egon (forged), 'St'	Germany (1945–6 locals and OPDs)	Detmold 1968, BPP 1961
Sturzeis, Fritz	Austria (1945 postal history)	Vienna 2001, VÖB
Subocz, Bohdan	Poland	Warsaw 2000, Polish Fed.
Subotica, Philatelica	Hungary	See Philatelica Subotica
Suchánek, Hugo (H.S.P. in triangle)	Czechoslovakia	Prague (Husova Street), dealer
Šula, Jaroslav (A and crown)	Czechoslovakia (Posta 1919)	Prague, 1865–1927, [Flasch]
Sundgaard, R.	Denmark	Denmark
Sundman, Christian	Finland (first issue)	Espoo, 1933–94, Finn. Phil. Fed. 1981–94
Sundman, Jacobus. Photo	Finland (local posts)	Helsinki, 1916–2008, Finn. Phil. Fed. 1981–2008
Sutcliffe, V.	Poland (Cracow 1919)	Also on forged
Suzuki, Yasushi	Japan and areas	Japan, ECPM (q.v.) 2001
SV (in circle)	Ukraine	See Svenson, Constantin
Svendsen, Lars. Certif.	Iceland, Denmark	Virum 1989 2004
Svenson (in Gothic), 'SV' (in circle)	Ukraine	Constantin Svenson, Wiesbaden, b. 1871 in Kyev, was in Ukraine c. 1920
Svensson, Nils. Certif.	Sweden	Stockholm, deceased
Sveriges Filatelist Förening	Sweden	Stockholm, society f. 1886
Svoboda, Gerhard	Austria (local issues)	Vienna 2001, VÖB
Swendsen, W.	Russia (Wenden)	Riga 1897
Synek, Dr. Bohumil	Slovakia	Bratislava, b. 1956, SCF 2001
Sz (manuscript, in circle)	Hungary (Szeged, Debrecen I)	See Székely
Sz, Dr.	Hungary	See Szalay
Sz., Dr. P.	Hungary	See Szilágyi, Paul
Szabó	Hungary (Debrecen)	On genuine, [Flasch]
Szalay, Dr. Béla (=Adalbert) ('Dr. Sz.'). Note (forged)	Rumania (Regatul), Hungary (Debrecen)	Sibiu (Hermannstadt) 1935, b. 1869, the foremost expert on these issues, [Flasch]
Szav. (Hungarian for 'guaranteed')	Hungary (Debrecen)	On genuine, [Flasch]
Székely, Mór ('Sz' in circle)	Hungary (Szeged, Debrecen I)	C. 1920, forged, [Flasch 149]
Székely Bpest (in two lines) (Szekely)	Hungary (occ. ovpt.s)	Sándor Székely, Budapest 1949, dealer, [Flasch]
Székula, Béla - Luzern, Budapest (Sekula, Szekula)	Europe, Hungary, Bolivia (1894), Ethiopia (1919), etc.	3 brothers, Bela Sz. 1881–1966, dealers pre-WW2, forgers, [Flasch 153, Tyler]
Szilágyi, Bela (Szilagyi)	Hungary	Miskolc, Budapest 1949, dealer, [Flasch]
Szilágyi, Dr. Paul J. ('Dr. P. Sz.')	Hungary	USA 1998, collector, [Flasch]
SZO	Hungary	[Flasch]
Sztaba, Kazimierz	Poland	Kraków 2000, Polish Fed.
T (in German type, twice on used)	Worldwide	See Thier
TA (in manuscript)	Br. Colonies	See Allen, T.
Tabata, Hiroshi	Japan and areas	Japan, ECPM (q.v.) 2001
Tachikawa, Kenkichi	Japan and areas	Japan, ECPM (q.v.) 2001
Taipale, A.	Poland	Finland? Collector?
Tarasoff, V. V.	Ukraine	Dealer
Tarján, Géza (Tarjan)	Hungary etc.	See 'Pape'
Tarre, F. del (Francisco del Tarré)	Spain	Barcelona, 1906–81, dealer, AIEP 1954–c.56
Tarré, Jordi (Jorge)	Spain	Barcelona, COMEX 1983 1996
Tarré, Lluis	Spain	COMEX 1996
Tatsopoulos, A.	Greece (WW2)	Greece? France?
Taubes	German States	.
Tausig Budapest, E. (Ede/Edmund Tausig). Note (forged)	Hungary (esp. Debrecen)	Budapest, well-known dealer, mark forged twice, [Flasch]
Tay, Peng Hian	Malaya (Straits Settlements pre-1900), Netherlands Indies (pre-1872), Burma	Singapore, b. 1944, expert 1989–, AIEP 1998–, [FFE4, PE]
Taylor, J.	Jordan (Transjordan)	.
Tchilinghirian, Simon D. ('SDT')	Armenia	Switzerland, 1902–67, AIEP 1959–63
Teetsov, A., 2. (Anton Teetsov)	Estonia	Tallinn, dealer, in use c. 1920–30
Tekel, Andrej	Czechoslovakia	Bratislava, SCF 2001
Tekel, Josef	Slovakia (postal history)	Bratislava, 1954–2005, SCF 2001
Tell, Jay	USA	Encino CA 2006, b. 1944, dealer 1965–
Terrachini, Dr. Virgilio	Italy and areas, Europe, etc.	Genova, b. 1957, expert 1996–. Certif.
Terray	Hungary (Western Hungary)	Béla Terray?, Bratislava, dealer, [Flasch]
Teschke, K., Leipzig	Ukraine	Leipzig, dealer
Teuber, Wilhelm	Ukraine, Heligoland, Yugoslavia	Lehrte (Hannover) 1950, b. 1882, UPV
Thailand, Philatelists Association of	Thailand	Bangkok, expert committee. Note
Thals Paris (T Hals)	Russia (South Russia, Wrangel)	See Sredinsky
Thiaude, Henri	France and Colonies	Paris 1943 1961, 1901–64, dealer, catalogue ed., AIEP 1954–64
Thier, 2 (both in German type; 'T' twice on used stamps). Note	German States (Bavaria etc.), Turkey, Europe, Worldwide	Max Thier, Berlin-Charlottenburg, 1852–1925, renowned expert 1890–1920
Thoden, Rudy J. ('RJT' in manuscript)	Saudi Arabia	Melbourne FL USA, d. 2002, Arabian Philatelic Association Int.
Thom, Einar	Germany (1945–6 locals and OPDs)	Meckelfeld, Seevetal, BPP 1968
Thoma, Heinz (this hand stamp has gone astray; forged), 2. Certif., 2	German States (Wurttemberg)	Winnenden, b. 1928, BPP 1968–98
Thorand, Colonel J.	Rumania	Bucarest 1897
Thorsson, Lars-Erik	Sweden	Sweden, expert 1970–80s
Thorsteinsson, Sigurdur H.	Iceland	Iceland, catalogue editor for 40 years
Thys, Herman	Belgium	Gent 2001, dealer. No longer 2005?
Tichatzky, Dr. Peter	Germany East (Mi 242–)	Berlin, b. 1929, BPP 1991
Tigerstedt, Carl-Gustaf (manuscript)	Russia	Koria (Finland), b. 1886, an owner's mark?
Tili	Czechoslovakia	[P. Hoffmann]
Tillard, Jean-Jacques (JJT). Certif.	St. Pierre & Miquelon	St. Pierre, b. 1965, expert 2000–. Note
Tillhör H.F.F.	Finland, also Worldwide (forgeries)	Owners mark, see Helsingfors F...
Timroth, Georg von ('GvT')	Worldwide	Helsinki, 1887–1961
Tiszolczy, Dezsö ('TyD')	Hungary (Western Hungary, Debrecen)	Debrecen, a collector, [Flasch]
Tkachuk, Jerry (Yaroslav) G. Note	Western Ukraine, Mariupol, Ukraine	Warren MI 2001, UPNS expert (chairman)
Tober, Hermann	Memel	Magdeburg 1935
Tocher, Don	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Todd, Gregory. Certif.	Afghanistan (1870–1900), Dominican Rep., Mexico (1856–67), North Korea	Ireland, b. 1955, dealer, expert 1990–, AIEP 2002–, [FFE6, PE]
Tokar, Jerzy	Poland	Lodz 2000, Polish Fed.
Tokkos	Greece (Kavalla)	.
Tollu, Charles	France	Paris 1943. Note
Tomerlin, Drazen	Germany (Reich) and States, Serbia	Zagreb 2006, CPS
Ton, Max	Italian States (Papal States), German States (Thurn & Taxis)	Weimar, 1882?–1951
Tönjes	Sweden, Finland	Germany?
Torrey, Dr. Gordon H.	USA, Worldwide	Washington DC 1976, 1919–95, chairman, Expert Committee, Society of Philatelic Americans SPA
Toselli, Casimiro and Roberto	Italy	San Remo 2001. Note
Tóth Gy(ula)	Hungary	Debrecen, a collector's mark, [Flasch]
Toulieff, Serge	Belgium	Soumagne 2001, b. 1936, [Soeteman]. Note
Tour, Dr. G. de la
Tournié, Henry	France, Europe	Paris 1943, dealer
Tows, Ferrars H.	Cuba, several other countries	Pennsylvania, d. 1958, collector
Trabert, Dr. C. H.	Switzerland (Official excl. perf.)	Baden-Baden, BPP 1980
Trachtenberg, B. ('B. Tracht. Odessa', 2)	Ukraine	Odesa c. 1920?, dealer, forged, also on forged
Trachtenberg, Henri	Worldwide (air mails)	Ivry-sur-Seine, 1908–87, AIEP 1964–87
Trebitz, L.	Greece	Meerane 1897
tree (green; picture of)	Lombardy-Venetia, Austria	See Provera. Note
Treschkow, P. von	Russia, Finland, Poland	Rüttenscheidt (D) 1897
Tribuna	Czechoslovakia	Czechosl., pre-WW2, dealers, magazine
Tribuna Expert Committee	Czechoslovakia	See Chesloe, Charlie, USA
trident (image of)	Ukraine	See Peters, [UPNS]
Trioullier, Jean	.	France, AIEP 1960–74
Tröndle, Alfred	Memel	Donaueschingen 1950
Trouant	Austria	.
Trüssel, Kurt	Switzerland	Lucerne 2001, SBPV until c. 2002
Tsachor, Yacov	Israel, Palestine	Tel Aviv, b. 1946, dealer, expert 1984–, AIEP 1993–, [FFE2 3, PE]
Tseriotis, Michael	Greece (Large Hermes)	Limassol, b. 1950, expert 1983–, AIEP 2000–, [FFE4 5, PE]
Tsuchiya, Masayoshi	Japan and areas	Japan, ECPM (q.v.) 2001
Tubinovic, Dejan (T over a Cyrillic D)	Yugoslavia incl. SHS, Trieste B	Belgrade c. 1980, deceased
Tuori, Jussi. Certif.	Finland (1856, 1860, 1866)	Espoo, b. 1940, expert 1998–, Finn. Phil. Fed. 1999–2010, AIEP c.2006–
Turkly, London, F. B.	Ukraine (on forged)	See Turpin and Note
Turpin, F. B., F. B. Turpin London. Note	Great Britain, Greece, Ukraine, (probably worldwide)	London e.g. 1910s, dealer, also on forged
Tust, Wolfgang	German occ. France, Prussia	Sens (France) , BPP 1976
Tworek, Rolf. Certif.	Germany (Infla incl. Official), Danzig	Soest (D), b. 1943, BPP 1982–
TyD (in script)	Hungary (W. Hungary, Debrecen)	See Tiszolczy
Tyler, Varro E(ugene)	Japan, Korea	West Lafayette (Indiana), 1926–2001, expert 1965–, AIEP 2000–01, [FFE4 5]
Tzirac., D.	Greece (Large Hermes), Latin America	.
Udam, D.	German States	Netherlands
Uebersee Import GmbH Bremen	Nicaragua	Bremen. Some kind of advertisement.
UEM (in oval)	Russia (Siberia)	On forged
Uemura, Takahashi	Japan and areas	Japan, ECPM (q.v.) 2001
Uexküll, Jakob von, Jr. (Uexkull)	Worldwide (cinderellas), Saudi Arabia	London (2002), b. 1944, see R.L.A.
UJ, Dr (in circle)	Hungary	[Flasch]
Ukkan Asuncion Paraguay (3 lines)	Ukraine	Collector or society, [UPNS]
Ukr.-Phil. Verb. e.V. (used c.1937–60 by Teuber, Seichter), 2 (c.1920–60). Note on the UPV marks.	Ukraine	Ukraine-Philatelisten-Verband, a German association f. 1920, [UPNS]
Ukrainian Philatelic and Numismatic Society	Ukraine, W. Ukraine, Carpatho-Ukraine	See UPNS
UL	Hungary	A reliable mark, [Flasch]
Unger, Arthur	Turkey (Mi 86–)	Vienna, BPP 2008–
Union Royal Philatélique	Belgium	Brussels 1950
Unterberg, Jenö	Hungary (Arad, Szeged)	Hungary, [Flasch 158]
Unverferth, Max	German States (Baden, Wurttemberg)	Pforzheim 1935, dealer, BPP 1958–
UPV	Ukraine	See Ukr.-Phil. Verb.; also on forged
UPNS. Certif.	Ukraine, W. Ukraine, Carpatho-Ukraine	Ukrainian Philatelic and Numismatic Society, Expertizing Committee, USA; cf. Tkachuk. Note
Urbanek, Jan	Poland	Poznan 2008, Polish Fed.
ürményi (cf. 'Ph.B.') (Urmenyi)	Rumania (Regatul)	Dr. Deszö Ürményi, Temésvar, [Flasch]
US (U.S.)	Estonia	See Saidla
UZ (similar to, in Armenian)	Armenia	Seen on genuine stamps w. forged ovpt
V (in blue): variety	Belgium and Colonies	See Soeteman, additional marks
Vaatz, Arnold	German States (Saxony)	Dresden 2025, BPP
Vaarnas, Kalle. Photo. (Certif.)	Finland (incl. Aunus), Austria, Belgium, Hungary	Helsinki, d. 1990, BPP 1961, Finn. Phil. Fed. 1981–90
Väätäinen, Lauri	Finland (1975, comm. 1975–2001)	Kuopio, expert 2009–, Finn. Phil. Fed. 2009–
Vaccari, Paolo	Italian States (Modena, Parma, Toscana), Austria	Vignola (Italy) 2001, dealer, no longer expert? (2007)
Vachat, Guy du. Certif.	Turkey	Villemomble (F) 2003, BPP 1996–2006
Vaher, Eo	Estonia	Melville NY 2001, in use, forged. Note
Vajda, Dr. (manuscript, in use 1940–50)	Sweden, Estonia	Imre Vajda, Stockholm, 1893–1968, AIEP 1958–68, cf. Wennberg
Valic, R.	Yugoslavia (SHS)	[Flasch]
Valódi	Hungary	Hungarian for 'Genuine', [see Flasch 126]
van de Loo, Pieter F. A. VDLOOBDK	Netherlands and Colonies	See Loo, Pieter F. A. van de
van der Linden, James	Belgium	See Linden, James van der
van der Willigen, Adriaan M. A.	.	See Willigen, Adriaan M. A. van der
van der Vlist, Hendrik Willem	Netherlands (postal markings)	See Vlist, Hendrik Willem van der
van Mozian, ('VM')	Armenia, Azerbaijan, Georgia	See Mozian, van
Vanhorenbeck, Johan	Belgium	Antwerpen 1999, b. 1949, [Soeteman]. Note
var	Rumania (Regatul)	On genuine, [Flasch]
Varga, Ladislaus	.	Paris, 1897–1981, dealer (Y&T), AIEP 1954–81
Vasdekis, N.	Greece	Greece, 1970s and 1980s
Vasquez-Cid, José	.	Spain, 1921–79, AIEP 1970–75
Vassilyev, Konstantin, 'KV'	Russia	Collector
VDLOOBDK	Netherlands and Colonies	See Loo, Pieter F. A. van de
VDVLIST	Netherlands, France	See Vlist
VE (in circle, c.f. 'V.F.')	Yugoslavia	See Ercegovic
Velickovic, Prof. Dr. Jovan ('JV' in circle), 2. Certif. Note	Yugoslavia, Serbia, Bosnia & Herzegovina, Montenegro, Trieste B	Belgrade, 1927–2012, expert 1975–, BPP 1991, AIEP 1994–, VÖB, [FFE2 3 5, PE]
Velten, Hans-Georg	Europe (Western; precancels)	Bad Kreuznach, 1906–93, BPP 1958–, AIEP 1954–80
Verband Philatelistischer Experten (VPEX)	Worldwide	Austrian assocation of 17 experts (2025)
Verband philatelistischer Prüfer e.V. (VP)	Worldwide	German assocation of 25 experts (2025)
Verein Philatelistischer Prüfer e.V. (VPh)	Worldwide	German assocation of 13 experts (2025)
Verner, Jaroslav J.	Czechoslovakia (Legion in Siberia)	Bethesda MD (USA ), SCF 2001
Verner, Mirko	Serbia, Montenegro, Bosnia, Yugoslavia, Hungary, Austria	Novi Sad 1954, 1915–82, AIEP 1958–80
Verret	Belgium	Schoten (Belgium), dealer
Vervalsing	Netherlands	Dutch for 'Forgery'
Vervisch, Roger	Belgium	Brussels 2001, b. 1922, [Soeteman]
Vespermann, H(ans) Waldemar. Certif.	Italian States (Papal States), Vatican	Hamburg, BPP 1968
VF (in circle, c.f. 'VE')	Yugoslavia	See Fleck
Vicini, Geom. Giovanni	San Marino, German occ. Ljubljana	San Marino 1950
Vieira, Armando	Portugal and areas	Portugal (Porto?), d. 2004
Vienot, J.	Germany (NDP: Alsace-Lorraine)	Mülhausen 1897
Vieth, Günter	Germany (POL perforations)	Hamburg 1988, BPP 1976
Vigor, Dr.	Armenia, Azerbaijan, Georgia	Also on forged
Vignati, Serena. Certif.	Italy and areas	Expert at Raybaudi's
Vilfan, Mladen	Croatia (WW2), Trieste B, SHS locals	Zagreb 2006, CPS
Vincent Graves Greene Philatelic Research Foundation	Canada, BNA	Toronto, expert committee, f. 1975, AIEP 1991–, [FFE2 4, APS Hall of Fame, PE]. Note
Vinc..., L.	Luxembourg	.
Vincke, Frhr. von	China incl. Shanghai and Formosa, Korea, Manchukuo, Mongolia, Tuva, Tibet	Wiesbaden, BPP 1958–
Viner, Dr. Charles William	Worldwide	London, 1813–1906
Vinner, A. V. (boxed)	Soviet Union (RSFSR Postmaster Prov.)	Seen on genuine
Vinterstern, Prof. O. (in Russian)	Russia, Estonia	See Winterstern
Visnyovszki, Gábor	Hungary	Budapest, b. 1945, expert 1990–, AIEP 1991–, [FFE3 4, PE]
VK	South America	See Kneitschel
VK	Ukraine	See Kedrovsky
Vlastos, Orestis	Greece and all areas	Athens, 1920–96, dealer, AIEP 1991–96
Vleeming, Henk	Netherlands, Neth. Indies (exc. Jap. occ.)	Enschede (NL), BPP 2003–
Vlist, Hendrik Willem van der	Netherlands and Netherlands Indies (postal markings)	Assendelft, b. 1936, expert 1970–, AIEP 1998–, [FFE1 3 4, PE]
VM	Armenia, Azerbaijan, Georgia	See Mozian
VÖB (VOB, VOEB)	Austria	Verband Österreichischer Briefmarkenprüfer (Austria), 1965–, [PE]
Vodrazka, Prof. Dr. Karl	Austria (DDSG)	Linz 2001, VÖB
Voetter, Otto	Austria (1850)	Lanzendorf 2004, VÖB
Vogel, Georg	Germany East (Meissen local)	Seen on stamps with forged postmark
Vogel, Jürgen	German States (Bavaria Mi 37–75)	Neufahrn, BPP 2001–05
Vogels, Hans	Poland (PO Gdansk)	Poznan 2008, Polish Fed.
Volin, Herbert R. Note	Finland, Sweden	Calif. USA 2005, APS and PF expert
Vollmeier, Paolo	Italy (pre-adh.)	Castagnola (Switzerland), b. 1929, expert 1974–, AIEP 1979–, [FFE3, PE]
Volz, Gustav	Germany (field post Tunis)	Mainz, 1903/4–71, BPP 1958–
Vossen, Friedr. Karl (+forged)	Germany and States (incl. Währungs-reform), Italy, Europe (esp. ovpt.s)	Düsseldorf-Oberkassel 1950, 1912–84, BPP 1958–, AIEP 1954–75
Votocek, Emil	Austria	Czechoslovakia, 1914–82, SCSF expert
VR (Victor Robert)	Syria (Arab Kingdom)	Paris, 1920s, dealer
Vyrovyj or 'W'	Ukraine	See Wyrowyj
W (in circle or without, also 'AW')	Hungary	See Walder
Wagner, Dr. Jan	Czechoslovakia	Czechosl., 1891–1968, USCF expert
Wagner, Matej	Czechoslovakia	Brno, 1876–1970, expert 1922–
Wagshal, Jerome S.	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Wahl, Günter	Denmark, Danish WI, Faroes, Greenland, Iceland, Sweden (post-1900)	Dresden, b. 1929, BPP 1991 (no longer)
Wajda, Dr., 2, (manuscript)	Sweden, Estonia	See Vajda
wak	Saudi Arabia	See King
Walder, Arthur ('AW') (also 'W')	Hungary (ovpt), Rumania (Regatul)	Arad, five diff. marks, [Flasch 160]
Walisch, Stanislaw	Poland	Lodz 2000, Polish Fed.
Walker, Peter	Russia, Soviet Union	British Soc. of Russian Philately
Walli, Harry W. ('H.V.')	Finland (esp. North Ingerm.), Estonia, Latin America, Worldwide	Helsinki, 1900–1970
Wallner, Dr. Ferdinand (forged), usually in handwriting. Certif. Photo	Greece, Albania (eagle ovpt 1913), Epirus, Croatia, Lombardy-Venetia, Austria, Poland (Cracow 1919), Czechoslovakia	Vienna 1943, 1894–1970, dealer, VÖB, AIEP 1954–70, BPP –1962
Walmath, Hennes (?)	Hungary (Baranya)	On genuine, [Flasch]
Walske, Steven Carl	Postal history	Chestnut Hill MA, b. 1952, AIEP c.2006–
Walter	German States	.
Waris, Pentti	Finland (1889)	Jyväskylä, Finn. Phil. Fed. 1996–2021.
Wasels, Heinrich	Germany (Prussia, Occ. WW 1)	Mülheim an der Ruhr 2025, BPP
Wasenius, K. A. ('CW' in oval)	Finland	Helsinki, dealer, in use 1930s
Wasenius, Leonhard	Finland	Helsinki 1897
Washburne, Stephen S.	Portugal and Colonies	USA, ISPP Portugal Society expert
Wassmann, Dieter	Russia, Soviet Union	Simmern, BPP 2003–2007
Watzke, Wolfgang	Latvia, German occ. Kurland, Ostland	Bonn, BPP 2000–
Watzlawick	Spain	Basel
Wayman, Giana	Costa Rica	San José 2001, Asoc. Filat. de C. R. 2001
Ways, Marian Zbigniew	Poland	Torun 2000, Polish Fed.
Weber, Reinhard	Finland (killer postmarks)	Järvenpää, b. 1943, Finn. Phil. Fed. 1990–2020
Weggler, Max	Switzerland (Int. Org.)	Zurich, dealer, BPP 1961
Weid, Alain von der (also '+Weid.' in manuscript). Certif.	Switzerland, France and Colonies	Geneva 2001, SBPV until c. 2002
Weigelt, Helmut (forged)	Germany (1945 Altdöbern), Germany East (Mi 182–, ZKD)	Calw (D), b. 1928, BPP 1968
Weinberg, Dr. Fritz	Germany (Upper Silesia)	Bad Münstereifel-Eschweiler, BPP 1991
Weinbuch, Dieter	Germany (Mi 98–337, Official)	Munich, BPP 1996
Weiner, Julius ('JW')	Estonia	In use 1930–70
Weinert, Dr. Viktor	Czechoslovakia (Posta 1919)	Bratislava 1926, b. 1890, [Flasch]
Weiss, H. (head of eagle + number)	Austria	Graz
Weiss, Oskar?. Advert.	Yugoslavia (SHS)	Zagreb, pre-WW2, [Flasch]
Weiss, Jan	Czechoslovakia (e.g. SO 1920)	Czechoslovakia, pre-WW2, [Flasch]
Weiss, William R., Jr.	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Weissenstein, Josef. This mark 'Wss' could be his.	Czechoslovakia (1945–)	Pardubice (Chech Rep.), b. 1947, dealer (Parfilex), SCF 2001
Weka	Switzerland	.
Wendel, Theodore	.	St. Brigitte (France) 1961
Wendt, Otto	Portuguese Colonies, Chile, Costa Rica, South and Central America (excl. Haiti, Colombia & Mexico), Seebeck issues	Hamburg-Blankensee, Ulzburg 1968, 1889–1969, BPP 1958–, AIEP 1954–69
Wenkums, Günther	Samos	Düsseldorf, BPP 1976
Wennberg, Harry ('H.W.', also 'G.W.'). Advert.	Sweden, Scandinavia, (HW not reliable on Berlin, Bezirk)	Stockholm 1926, 1872–1927, dealer, shop later owned by Imre Vajda q.v., [Postryttaren 2004]
Werner, A. Budapest	Hungary (occ. ovpt.s)	Sandor (= Alexander) Werner, Budapest 1949, dealer, reliable, [Flasch]
Werner, Dr. Albert	German States (Bergedorf and Mecklenburg-Strelitz)	Erlangen 1935, b. 1878
Werner, L.	Rumania	.
Wertheimer-Ghika, Jacques	Rumania (pre-1900)	Bucarest 1950
Wertmark Paris	.	.
Western Hungary, 2 (arms)	Hungary (Western Hungary)	[Flasch 33, 169]
Westoby, W. A. S.	Worldwide	England, 1815–99, philatelist.
Weston, B.	Europe, Heligoland	England?
Wezranowski, Eugeniusz	Poland	Warsaw 2008, Polish Fed.
WF	Germany East (Bezirk 1948)	See Fläschendräger, W. (?)
WH (in script)	Honduras	.
WHC	USA (Provisionals), Hawaii	See Colson
Wiatrowski, Zdzislaw	Poland	Drzonkow 2008, Polish Fed.
Wieclaw, Waldemar	Poland (1944–)	Gdansk 2008, Polish Fed.
Wiegand, Manfred (forged). Certif.	Germany (Mi 31–50, Official I–II), German PO Levant	Göttingen 2003, BPP 1991
Wieneke, Michael	Croatia; German occ. Channel Is.?	Cologne, BPP 1996
Wilderbeek, Dr. Hans	Germany (Braunschweig)	Eindhoven NL, BPP 2014–
Willadt, Carl	German States (Baden), Switzerland	Pforzheim 1897
Williame, U(lmar) E. G. (in blue)	Belgium	Brussels 1943, 1903–76, dealers, AIEP 1954–76, [Soeteman]
Williams, Maurice & L. N.	Worldwide locals	England, brothers
Willigen, Adriaan M. A. van der	.	Netherlands, 1910–87, AIEP 1972
Willmann, Dr. Erich von	German Colonies, Turkey	Munich 1950, Bad Waldsee, BPP 1961
Wilson, Sir John	Br. Colonies	London, 1898–1975, chairman RPSL Expert Committee 1937–75, AIEP 1954–c.56.
Winczer, A... (boxed)	Czechoslovakia (Posta 1919), Hungary, Rumania (Regatul)	Alex W., Késmárk, [Flasch]
Windel, Wolfgang	Haiti	Norderstedt, b. c. 1945, BPP c. 1982–
Winkler, Hartmut	Germany (Official Mi 52–64), German States (Wurttemberg Mi 44–62 & Official)	Owen/Teck 2004, prev. Kirchentellinsfurt (D), b. 1943, BPP 1991
Winter, Richard F.	Transatlantic mails (postal history)	Greensboro NC USA, b. 1937, expert 1991–, AIEP 2002–, [FFE6, PE]
Winter-Laczay, György	Hungary (Western Hungary)	Northern Army Chief of Staff, [Flasch]
Winterstern, Prof. O. (in Russian)	Russia, Estonia	Zurich, in use c. 1950–70
Wise, P. (manuscrip)	Mauritius, Natal	.
Witschi, Hans	Sweden, Denmark, Norway, Finland, Iceland, Greenland	Sumiswald 2001, SBPV until c. 2002
Witt, Helge	Denmark (pre-1885), Danish WI, Sweden, Iceland (pre-1885)	Copenhagen, 1917–77, AIEP 1954–77, BPP 1961
Wittmann, Dr. Heinrich	Germany (Germania issues, Bizone Bauten)	Munich, auctions (still exist), BPP 1958–
WOG	Malta	.
Wolf, Sigfrido. Certif.	Italy	Firenze 1990s, dealer. Note
Wolff, Dr.	Finland, German States	Germany?
Wolff, Bernhard	Luxembourg	Luxembourg 1950
Wolford, Kirk	USA, BNA, Br. Colonies	Profess. Stamp Experts 2000
Wowern, Eric v.	Greenland, Faroes	Virum (Denmark) 2000
WRL	Crete	See Libermann
Wülbern, Arthur. Advert., 2.	Heligoland, etc.	Hamburg 1905, 1869–1926, dealer
Wynnyczok, Don	Ukraine	USA, a collector's mark, UPNS
Wyrowyj, Eugene, 'Vyrovyj', 'E. Wyrowyj Praha', 'W'	Ukraine (esp. Podolia)	Prague, b. 1889, prominent collector, UPV, [UPNS]
Yablonovskiy, Yuriy	Russia, Soviet Union	See Raritan Stamps Inc.
Yamaguchi, Mitsuru	Japan and areas	Japan, ECPM (q.v.) 2001
Yaremdji, Apik and Michel. Note. Advert.	Turkey, Levant POs	Istanbul 1905, 1926, dealers 1885–1930s
Zaborsky, Karoly	Hungary (first issues)	Budapest, 1922–2000, AIEP 1984–2000
Zagha, Moïse (Mourad), in script in circle	Syria (Arab Kingdom)	Damascus, 1920s, reputable dealer
Zagorsky, Dragomir	Bulgaria, Eastern Rumelia	La Mesa CA (USA), b. c. 1925, formerly VÖB
Zampach, František (posthorn)	Czechoslovakia (typo stamps)	Brno, 1914–2000, SCF
Zanaria, Daniele. Certif.	Italy	Milano 2006, dealers
Zanetti, Dr. Fiorenzo	Italian occ. Albania, San Marino, Italian PO Libya, Eritrea (postal history)	Milano, 1953–2007, expert 1989–2007, AIEP 1998–2007, [FFE3, PE]
Zanini, Mario. Certif.	USA, Italy, Switzerland, Venezuela	Bellinzona-Molinazzo (CH), 1914–81, AIEP 1958–81
ZB (in circle)	Yugoslavia	See Boskovic, Zoran
Zco, 2, Z.Co	Europe, Switzerland	See Zumstein & Cie
Zechmeyer	German States	G. Zehmeyer, Nuremberg c. 1900 ?
Zeigler, Robert G.	Switzerland, Liechtenstein	Indianapolis IN 2001
Zeis, Andreas F. (Zeïs) (Α. ΖΕΗΣ)	Greece	Athens
Zemis - Riga, O.	Armenia, Azerbaijan, Georgia	See Dzenis
Zempel, Dr. Heinrich	Germany (Mi 31–50), Germany East	Nauheim, BPP 1968
Zenker, Gisbert	Austria incl. DDSG and ovpt.s 1945, Lombardy-Venetia, Bosnia & Herzegovina, Austrian PO Levant and Crete	Vienna, 1920–87, AIEP 1967–87, BPP 1976
Zenker, Gotwin (forged). Certif.	Germany (pre-WW1, Infla colours, Mi 37), Norway	Vienna, 1922–2007, BPP 1976, VÖB
Zennert Hamburg, W.	Europe	Hamburg
Zierer, Hanns, H. B. Zierer, Hans Zierer, Zierer HBP (from 1991, forged). Some are dealer's marks. Certif.	Germany* (all locals and OPDs 1945–6), Germany East* (Mi 182–), Germany (Third Reich and areas), Finland, Soviet Union, etc. *When BPP expert.	Burglengenfeld 1976 2005, dealer, now independent expert, BPP 1968–91
Zimmerl, Prof. Richard	.	Vienna 2001, VÖB a.o. member
Zirath, Walter (forged). Certif.	German occ. Ukraine, field post 14–15	Hamburg, BPP 1984
Zirkenbach, Kurt	Germany (Infla), German occ. Etapp. West (only cancels), East (Bezirk 1948)	Halle/Saale 1950, 1895–1972
Zöbisch (scan: Wilhelm van Loo)	German PO China, Great Britain	.
Zohby, G.	Syria (Arab Kingdom)	Also on forged
Zoscsak, Rudolf	Rumania	Vienna?, b. 1872, expert c. 1920–60
ZP (boxed)	Albania, Epirus, Turkey	See Prendushi
Zrinjscak, Predrag (PZ in circle). Certif.	Croatia, Trieste B, Istria B, Yugoslavia	Pforzheim, b. 1946, expert 1985–, AIEP 2000–, CPS, [FFE4, PE]
Zumstein & Cie, Zco, 2, Z.Co. Certif. Hinge. Note	Europe, Switzerland	Bern, dealers f. 1905, see also Hertsch
Zweiling, Arthur	China, Japan, Korea	Bergfelde bei Berlin, 1893–1971, BPP 1961
Zydek, Dr. Hans	German occ. Macedonia & Serbia	Bonn, BPP 1991

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