A silver object that is to be sold commercially is, in most countries, stamped with one or more silver hallmarks indicating the purity of the silver, the mark of the manufacturer or silversmith, and other (optional) markings to indicate date of manufacture and additional information about the piece. ...

What are the markings for real silver?

Authentication Hallmarks

International sellers of silver will stamp silver as 925, 900 or 800." These numbers indicate the level of purity of the silver. Sterling silver has a purity of 92.5 percent or higher.

How do you identify a silver mark?

Silver hallmarks are one of the most important factors in identifying antique silver jewelry, flatware, and other items. These small stamped symbols on the back or underside of silver items can tell you the purity of the silver, the manufacturer of the piece, and sometimes even the date it was made.