PART V. Planchet Errors:

Wrong Planchet & Off Metal Errors:

Business Strike on a Proof Planchet

Definition: This occurs when a proof planchet is struck by business-strike dies.

The 1977-D Eisenhower Dollar pictured below was struck at the Denver Mint. The planchet has a 40% silver clad composition and was intended to be struck as a proof at the San Francisco Mint.

Images are courtesy of Heritage Auctions.