Corelay - Polymetallurgical Corporation (PMC)

Mintage	500 pieces
Diameter	27.00 mm
Thickness	3.00 mm
Composition	Copper Alloy with a magnetic iron core
Weight	177.00 grains (approximately 11.47 grams)
Thickness	3.00 mm
Edge	Reeded
Price	around $650

This Corelay token was produced by the Polymetallurgical Corporation (PMC) of Attleboro, Massachusetts, and was presented as a coinage option to mints throughout the world. PMC produced 500 of these tokens specifically for presentation at the XIX Mint Directors Conference held on May 27-30, 1996, in Warsaw, Poland. According to Polymetallurgical Corporation, Corelay® "consists of a magnetic core material surrounded by a non-magnetic or slightly magnetic alloy selected for its durability, anti-tarnish properties, color and formability. Coinage made from corelay system allows the magnetic core to be virtually invisible to the naked eye, giving the coin a monolithic appearance while allowing high degree of detectability by coin validators."

The Corelay® technique was pitched to the U.S. Mint as a viable option for the dollar coinage program. It was tested by the mint and was found to have a high degree of security. For various reasons however, Corelay® was not selected as the material used for the golden dollar. Currently, there is no coinage using the Corelay® system.

Corelay® Booklet