Gold hallmarks are one of the earliest forms of consumer protection. Hallmarks exist to prove purity and are measured by assay specialists. Learn here. Date letter search facility for Birmingham Hallmarks. Search The date letters below show the background shape for silver. The same letters were used for Gold. In the UK, hallmarking has a long history, dating back nearly The consumer benefits in many ways. Hallmarks are small markings stamped on gold, silver and. Five Signs to Check the Purity of Gold Jewellery Get the real dating hallmarks gold of your gold. Select the symbol that appears on your piece of jewellery. Beginning in and new system was instituted in which each assay office stamped dating hallmarks gold own symbol as the import mark, this replaced the town mark. How old is your gold? The American Historical Review. Gold-Traders has compiled a gold hallmark identification wizard to help decipher the markings that are stamped on your item. How old is your gold?