

A tree, fish and bell (from the city arms)
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, which followed a 26 year cycle, was changed annually in July. The Assay Office closed in 1964.