Issue commemorating the first postage stamp in the world, the so-called Penny Black, issued in Great Britain in 1840, the offered medal was issued to mark the 125th anniversary of the stamp's issue.
Penny Black was the world's first self-adhesive postage stamp used in a public postal system. It was first issued in Britain on May 1, 1840, but was not valid for use until May 6. It shows the profile of Queen Victoria.
.900 gold.
Obverse: profile of Queen Victoria, above POSTAGE, below ONE PENNY
Reverse: inscription in seven lines
JUBILÄUMS / PRÄGUNG / DER ERSTEN / BRIEFMARKE / DER WELT / 1840 - 1965 A / 900 HH
Dimensions 24 x 21 mm, weight 6.96 g