
Undated
Deykin & Harrison
This group includes a Birmingham hallmark and a Dublin import mark dated 1911.
Country guide
Irish silver hallmarks are associated with the Dublin Assay Office; the crowned harp and Hibernia occur in the Irish marking tradition.
The sponsor punch, fineness mark, Hibernia device and optional date letter perform separate jobs. The Dublin Assay Office was established in 1637. Its date-letter sequence differs from the UK sequence.
Read the full Irish group before interpreting a letter. A Dublin A can denote a different year from a London A. Retain the shield and typeface as well as the letter when comparing historic marks.