Dating british gold hallmarks
This means that UK Assay Offices can apply the common control mark which will then be recognised by all member countries in the convention.Conversely, convention hallmarks that have been applied in other member countries are recognised in the UK.The key mark to look for is the Common Control Mark. In Dublin the Sovereign’s Head Duty Mark was used from 1807 and in Glasgow from 1819.It should be noted that the head did not always change with the Monarch! The figure of Britannia was used from December 1784 to July 1785 to indicate repayment.The alloy must be at least 750 parts per 1000 to be marked as such. This symbol shows which Assay Office tested and marked the item.The Anchor is the symbol of Assay Office Birmingham .Other assay offices were later opened in centres where goldsmiths worked.The fineness of the metal is tested to make sure it meets legal requirements and then it can be stamped with a hallmark.
Marks were structured with the crown and the date letter in the same punch.
The testing (assay) and hallmarking of gold and silver items in Britain goes back to the year 1300.
At first the wardens of the Goldsmiths' company would visit guild members workshops and stamp their work with the mark of the leopard's head.
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.