SilverMine	British Silver Marks Glasgow 1681 - 1964 1681 - 1871 1871 - 1964

The Glasgow Assay Office was established in 1819. A date letter was used on wrought silver from 1681 to 1710 then discontinued until 1819. During this time the letters "S" (sometimes reversed), "E","F" and "O" were used. The date letter was changed annually in July. The Assay Office closed in 1964.