noun
: a coin not intended for circulation but struck from a new, highly-polished die on a polished planchet and sometimes in a metal different from a coin of identical denomination struck for circulation
noun
: a coin not intended for circulation but struck from a new, highly-polished die on a polished planchet and sometimes in a metal different from a coin of identical denomination struck for circulation
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012