Great Britain – 1840 Penny Black, 1 Penny Black Plate 3 | Lettering JL | SG 2 | Used | Two Margins

The world's first adhesive postage stamp, the iconic 1840 Penny Black, issued by Great Britain on 6 May 1840, revolutionized postal communication and remains one of the most celebrated classics in philately. This example is Plate 3, lettered JL, catalogued as Stanley Gibbons SG 2, and is a used example retaining two clear margins. Plate 3 is one of the earlier printing plates and is less common than some later plates, although condition plays the greatest role in determining value. While four-margin examples command significant premiums, two-margin copies are popular as affordable examples of this historic issue and remain highly collectible among classic Great Britain and worldwide stamp enthusiasts.