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The loupe also allows you to read any markings (if any exist) regarding gold and silver quality. ... Another way to help identify great pieces when thrifting vintage jewelry is to know the ...
London assay office hallmarks on the back of a waiter, or small square salver. Marks indicate it is Britannia gauge silver made by (or for) Paul de Lamerie (taken to or) in London and dated 1732 (it could have been made a year or two earlier than 1732). A stamp indicating the purity of the silver is called the assayer's mark.
Hallmarks include information not only about the precious metal and fineness, but the country from which the item was tested and marked. Some hallmarks can reveal even more information, e.g. the assay office, size of the object marked, year the item was hallmarked - referred to as a date mark (also known as date letter). [2]
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Jewelry by Boucher is almost always signed (meaning a marking signifying authenticity was put on the piece) and has an inventory number on it somewhere. [2] Some of the earliest marks say 'Marboux' or 'MB.' [2] Boucher used white metal in his pieces, but the entry of the US in World War II meant that metal was scarce. [3]
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