Hallmark

A hallmark is an official mark or series of marks struck on items made of metal, mostly to certify the content of noble metals—such as platinum, gold, silver and in some nations, palladium. In a more general sense, the term hallmark can also be used to refer to any distinguishing mark.

"Hall Mark" redirects here. For the racehorse, see Hall Mark (horse).
For other uses, see Hallmark (disambiguation).
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