Not all my work will be hallmarked though; only those pieces which contain an amount of silver above a certain weight require a legal hallmark. For silver this is anything over 7.78g. For gold and palladium the value is 1g, and for platinum 0.5g.
Any pieces falling under that level do not require to be hallmarked, although often you will find metals stamped with the number '925' for Sterling Silver. This number alone does not constitute a legal hallmark though, and is no guarantee that the metal is of the purity claimed.
If you would like more information on hallmarking, you can find a copy of the Assay Office's Dealer Notice by clicking on the button below:
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