Certified Isle of Man 5 Crowns Penny Black 150th Anniversary 1990 Gem Proof NGC - IN BOX

This Isle of Man 5 Crowns Proof was issued in 1990 to commemorate the 150th anniversary of the Penny Black, the world's first adhesive postage stamp. First released in Great Britain in 1840, the Penny Black revolutionized postal systems worldwide and remains one of the most important milestones in communication history. The commemorative design honors this landmark achievement with a detailed reproduction of the famous stamp featuring Queen Victoria.