PART V. Planchet Errors:

Bi-metallic Errors:

Incomplete Trilaminar Core

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.

Two euro denomination bi-metallic coins have a trilaminar core. The core is a disc composed of elemental nickel sandwiched by a thin layer of Nordic gold on either face.

A 2002 two euro from Germany missing both the center nickel and outer trilaminar layer on the obverse face. A very few examples are known from various European countries.