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Hallmarks

Assay Office London
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Some pipes illustrating the Londoner hallmarks on this site:
London town mark: leopard head
.....
Until 1822 the Leopards head was crowned
Lion passant certifying the fineness of silver
..
A crown mark certifies the fineness of gold (18 carats)
Date letters of Assay Office London
Twenty letters of the alphabet of different shape identify the year in which the piece was verified by the assay office.
1896 - 2001
Click to enlarge
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