assay-mark

English Thesaurus

1. a mark on an article of trade to indicate its origin and authenticity (noun.communication)

hypernym	:	mark, marker, marking,
definition	:	a distinguishing symbol (noun.communication)

derivation	:	authenticate,
definition	:	establish the authenticity of something (verb.cognition)

derivation	:	authenticate,
definition	:	establish the authenticity of something (verb.cognition)