(Images:  on original page.) The forgeries, 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. F2: 1. Thick, blurred and large letters. 2. Shades of colour very different from authentic. Compare. 3. First 'e' of 'ex-press' with centre bar (missing in gen.). 4. Note postmark (often wrong dates). Not known unused? 5. Often on cover. Next page - Start