The World's First Postage Stamp Could Reach $8.25 Million at

This particular 1840 Penny Black is the world’s first postage stamp. It is expected to fetch up to $8.25 million at Sotheby's in December.

Penny Black, the world's first postage stamp, expected to fetch

Memorial Queen stamps to be released by Royal Mail - when and how

World's First Stamp, Penny Blacks

Sold at Auction: GERMAN ANTI-BRITISH PROPAGANDA PUBLICATIONS

Usps Case #1

ICAO and the United Nations Postal Administration (UNPA)

The World's First Postage Stamp is Worth Millions

Undated - My Infinite Agenda - Black with Silver (180 Days) - 5 x 8.2

World's first postage stamp goes to auction

World's First Postage Stamp Goes Up for Auction

The Postal Service Guide to U.S. Stamps, 37th ed: United States