The 10 Most Valuable U.S. Stamps - HISTORY

Jul 18, 2021 - Some are firsts, others have printing errors and others are simply rare and old—all factors that make these the most sought-after U.S. stamps.

R201 - 1914 10c US Internal Revenue Stamp - offset, watermark

R245 - 1917-33 $10 US Internal Revenue Stamp - engraved, orange

Introduction to Stamp Collecting

The American Stamp Columbia University Press

How to Find the Value of a Stamp: 16 DIY Appraisal Tips

Gallery of Rarities

UCLA's legendary Coach John Wooden to be honored with postage

The 10 Most Valuable U.S. Stamps, HISTORY

21 Most Valuable Stamps: Rare Stamps Wanted By Collectors