An alloy of gold and silver with a large proportion of copper or other base metal, used in coinage.
An alloy of bronze and silver. The silver content ranges from very high, so that the coin looks like silver, to very low, so that it looks like bronze.
A metal alloy occassionally used for minor coin issues consisting of a mixture of silver and a very high copper content. Sometimes billon coins are treated with a thin silver coating to give a shiny appearance.
Silver alloy containing less than 50% silver.
Alloy of silver and base metals containing less than 50% silver; often silver-washed
A low grade silver alloy, usually below 50% purity, used for coins. Often naturally occurring.
An alloy of silver and another metal, usually copper, which is less than 50% silver
low grade alloy of silver.
An alloy containing a small amount of silver mixed with another less valuable metal.
Silver alloy, low title ( 50%). Bracteate Medieval silver coins, with bockage proceeding ( incuse) and with big diameter and with very thin edge.
a low grade of silver. Although sometimes silver in color, usually made of part silver and part copper.