PART VI. Striking Errors:
Bi-metallic Errors:
Bi-metallic planchet struck by solid Denomination
Dies
Definition: Bi-metallic error coins are restricted to foreign countries. These coins may experience any of the many types of striking errors listed in the Error-Variety Ready Reference however, one must understand we are dealing with two components, a ring & a core. Any number of exotic possibilities or combinations of die varieties, die errors, planchet errors & striking errors can be found on bi-metallic coinage.
A bi-metallic planchet enters a press set up for a solid-alloy denomination.
A 2006 Chilean 10 pesos struck on a 100 pesos bi-metallic planchet.
