Numismatics

Collectibles Oops! A 1975 Dime Missing a Single Letter Could be Worth $500,000

Part of a proof set that originally sold for $7, the 1975 dime is now considered the world’s most valuable modern coin, all because of a missing San Francisco mintmark.

Antique Trader Staff

Stamps How Postage Became Uniquely Collectible Currency During the Civil War Kele Johnson