Hallmarks are small markings stamped on gold, silver and platinum articles. A British Hallmark means that the article has been independently tested and guarantees that it conforms to all legal standards of purity (fineness). These tests are carried out only by an Assay Office, of which there are four in the UL – London, Birmingham, Sheffield and Edinburgh.
The Hallmarking Act 1973 changed on 1 January 1999 and allows articles of higher and lower standards of fineness to be sold. This brings UK law into line with European law. Consumers may now choose from a much wider range of goods but to continue to benefit from the same level of protection.
Here are the hallmark date stamps on silver, gold, and platinum for the Offices of London, Birmingham, Sheffield, and Edinburgh from 1678 to 1974.
London Dated Hallmarks 1678 – 1974
Birmingham Dated Hallmarks 1773 – 1974
Sheffield Dated Hallmarks 1773 – 1974
Edinburgh Dated Hallmarks 1705 – 1974