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.

The Inverted Jenny: The Stamp That Sold for $2 Million - The New

World's First Postage Stamp Goes Up for Auction

World's first postage stamp, penny post, heads for auction at USD

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

The 1840 Penny Black National Postal Museum

World's First Postage Stamp Goes Up for Auction

The American Philatelist May 2018

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

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