(Images:  on original page.) The forgery, F1: 1. Perf. 10½ (gen. 11½). 2. Both 'postage' notably closer (0.1–0.2 mm) to the frame line (gen. 0.5 mm). 3. 'A' (both) appears to be smaller. 4. Sometimes with expertising mark illustrated below. 5. Not known used. No F2 known. Next page - Start