Hallmarking Act 1973

Articles exempt if of minimum fineness

10 Any article—

(a) which is of gold assaying in all its gold parts not less than 375 parts per thousand, or

(b) which is of silver assaying in all its silver parts not less than 800 parts per thousand,

and which in either case was manufactured before the year 1900 and has not since the beginning of the year 1900 been the subject of any alteration which would be an improper alteration if it had previously borne approved hallmarks.

11 Any musical instrument, where the description is applied to the mouthpiece, and the mouthpiece is of minimum fineness.

12 Any article which is of minimum fineness and the weight of which is less than that specified in the following table—

gold	1 gram.
silver	5 grams.
platinum	0.5 gram.

13 Any article which is of minimum fineness and which is so small or thin that it cannot be hallmarked.

14 Any article which is of minimum fineness and which is imported temporarily (whether as a trade sample, or as intended for exhibition or otherwise) and for the time being remains under the control of the Commissioners of Customs and Excise.