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![The only Known examples of the 1975 No S Proof Roosevelt Dimes.{left} is the PR-67 "Ohio Specimen" and on the [right] is the PR-68 Discovery Coin](https://coinweek.com/wp-content/uploads/2026/10/the-two-known-examples-of-the-1975-No_s_dimes-218x150.webp "One Woman, Five Proof Sets, Two Missing Mintmarks, and a Half Million Dollar Dime")
One Woman, Five Proof Sets, Two Missing Mintmarks, and a Half Million Dollar Dime
One California collector found both known 1975 No-S Roosevelt Dimes.
Nearly 50 years later, their remarkable histories offer a story of discovery, secrecy, and...
The $10 Eisenhower Dollar That Became a $264,000 Rarity Returns to Auction
1971-S Eisenhower Dollar Prototype: Only 3 Known
In February 2008, collector Lee C. Lydston attended the Long Beach Coin Expo with his wife, Denise. While...
1964 Kennedy Half Dollar: The Tragedy, Mystery, and $156,000 Rarity Behind America’s Memorial Coin
The Secret 1964 Kennedy Half Dollar That Sold for $156,000
Few American coins carry the emotional weight of the 1964 Kennedy Half Dollar.
The United States...
