Album weeds : or, How to detect forged stamps (1882)
Earée, R. B · London : Stanley Gibbons · leaf 432
through it. The beard is much more distinct and prominent than in the genuine, and the point, which can be plainly seen, comes down very close to the bottom outline of the central picture. Postmarks. Genuine. I have no cancelled specimen. Forged. A set of four concentric circles, with five short…
Postage stamps
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.