C - Sterling. Views Read Edit View history. This petition was successful and the Birmingham and Sheffield Assay Offices were established by Act of Parliament in However, the date letter system allows antique plate to be dated more accurately than almost all other antiques. Use dmy dates from May All articles with unsourced statements Articles with unsourced statements from October Articles with unsourced statements from September This shows the fineness of the metal — ie purity of the precious metal content in parts per in relation to the standard recognised in the UK. Roland Arkell.
The duty on items that were exported was refunded.
Birmingham Date Letters
The Hallmarking Act of brought the remaining 4 British Assay Offices London, Birmingham, Sheffield and Edinburgh into line with each other with the date letter now changing from on 1 January each year. Date Letter, 4. Industrialists from both Birmingham and Sheffield petitioned Parliament to be allowed to establish assay facilities local to each town. Collectors will often place a premium on silver hallmarked in other regional centres which have since closed. Most British and Irish silver carries a number of stamps indicating not just the standard or purity mark typically the lion passant but also the initials of the maker, a date letter and the place of assay. Edinburgh castle present.