This unique and amazing 1973-S Proof Eisenhower Dollar was broadstruck on a 26g bronze planchet. Since it was struck by proof Ike Dollar dies, the collar was setup to hold the 36mm diameter of the Ike Dollar planchet. The strike expanded the size of the bronze planchet to approximately 40mm, creating a cupped obverse and was broadstruck.

After recently surfacing in an old-time collection of U.S. mint errors, it was authenticated and certified by NGC as Proof 61 Cameo.

It is fully struck with nearly perfect mirror surfaces and a deep cameo portrait. There are a few light scratches visible on the obverse. Considered one of the most spectacular mint errors known on a proof Eisenhower Dollar.

This unique proof bronze Ike Dollar could have been struck on a bronze planchet intended to be used to strike the 1973-S medal in commemoration of the 100th anniversary of the cable car in San Francisco. This commemorative medal was enacted by the Senate and House of Representatives of the United States of America.

Featured on the cover of Mint Error News Magazine Issue 61:




Proof Errors are featured in the NLG award
winning book, World's Greatest Mint Errors.