WORLDKINGS - Worldkings News - Europe Records Institute (EURI) – Penny Black: World's first adhesive postage stamp used in a public postal system
22-09-2021
(Worldkings.org) The Penny Black was the world's first adhesive postage stamp used in a public postal system. It was first issued in the United Kingdom, on 1 May 1840, but was not valid for use until 6 May. The stamp features a profile of Queen Victoria.