These tiny portraits keep America's iconic leaders at our fingertips, their contributions to history forever stamped on our ...

Stamp investments refer to the practice of purchasing and holding postage stamps and other philatelic ... than those with disturbed or missing gum. Perforations are the small holes between stamps ...

A single sheet of 240 stamps was printed in 1864 before authorities realized the plate was faulty—poor alignment caused the stamps to be mis-perforated ... first adhesive postage stamp to ...

The Universal Postal Union (UPU), an agency ... stamp is being issued in a sheet of 10, with each stamp measuring 44mm by 31mm, with a comb perforation of 13.9mm by 14mm and bearing the Maltese ...