1971-S Ike Dollar
Struck on Liberia $1 Planchet (18.2g)



This is a unique discovery mint error. This proof Ike dollar was struck on a Liberia dollar planchet. Liberia dollars were struck by the San Francisco Mint from 1966-1975. The composition is 75% Copper and 25% nickel with a weight of 18 grams and a diameter of 34mm.

Proof coins are struck by technicians who hand feed the blanks into special presses. They are produced, examined and packaged using extreme quality control. It is very unusual to find major proof errors. A few broadstrikes, off-centers, double strikes (in collar) and off-metals have been known to be found in sealed proof sets. Proof errors are aggressively sought after by many error collectors.

A very small group of Proof errors recently came from a collection that was auctioned by the State of California. The U.S. Secret Service inspected and released this collection to the State of California determining that it was legal to own. The State of California then auctioned the collection and it has been dispersed since the sale.



Proof Errors are featured in chapter 21 of my
NLG Award winning book, World's Greatest Mint Errors: