- A yearly test officially made to determine whether gold and silver coins have been kept up to standard.
Ballentine's law dictionary. Anderson, W.S.. 1998.
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annual assay — An annual trial of the gold and silver coins of the United States, to ascertain whether the standard fineness and weight of the coinage is maintained. 31 U.S.C.A. No. 363 … Black's law dictionary
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