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The testing (assay) and hallmarking of gold and silver items in Britain goes back to the year 1300.

The fineness of the metal is tested to make sure it meets legal requirements and then it can be stamped with a hallmark.I don't make any attempt here to cover manufacturer's trade marks, of which there are thousands.If you want to identify a trademark, an invaluable resource is Mikrolisk.Make sure that you get a 2014 or later edition, because only those contain correct information about British import hallmarks applied to watch cases.Also be aware that the tables of date letters in most references are only for British silver items, gold and imported items often have different punch shapes for their date letters. There is a lot of information on this page and I know it can be difficult to take it all in; if you are struggling to understand the marks in your watch case please ask me for help via my contact me page.

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