Alloy of a precious metal with majority base metal content
Billon () is an alloy of a precious metal (most commonly silver, but also gold) with a majority base metal content (such as copper). It is used chiefly for making coins, medals, and token coins.
The word comes from the French bille, which means 'log'.[1]
- ^ "Billon". Dictionary.com (Unabridged (v 1.1) ed.). Random House, Inc. Retrieved 25 September 2009.