Part V: Planchet Errors:
Wrong planchet and off-metal errors:
Coins struck on washers, gears, and other hardware
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Definition: Hardware includes washers, nuts, bolts, or machine parts such as malfunctioning feeder fingers.
Below: A large Bolivian feed finger struck by 1 boliviano dies.
Below: A large feed finger struck by Chile 500 pesos dies. This isa bimetallic issue. A normal coin has been placed next to the struck tip of the feed finger.
The images below show a 1957-D Lincoln cent that has been struck on a washer. Images courtesy of Heritage Auctions.
This 2006-P North Dakota Statehood quarter was struck on a washer. The 1976-S Bicentennial Washington quarter pictured below was struck on a magnetic washer. This is not a proof coin, but was instead struck with a normal finish. It was evidently struck with dies that were striking quarter dollars for a special mint set that was produced by the San Francisco Mint in that bicentennial year.
Images are courtesy of Heritage Auctions.
The 1776-1976 Bicentennial Washington quarter pictured below was struck on a magnetic washer. Images are courtesy of Jon Sullivan.
