What does an anchor mean on silver?

An anchor on silver typically indicates the metal's purity and authenticity, often appearing as part of a hallmark. In British silver, for example, an anchor signifies that the item was made in Birmingham, a major center for silver production. It may also denote that the piece is made of sterling silver, which contains 92.5% silver. Overall, the anchor serves as a mark of quality and origin in the silver industry.