Your wedding ring was made by a London manufacturer called Berker Bros, who are well known for making wedding rings. The lions head, I guess is the leopard's head, which is the town mark for London. 375 is the millesimal fineness mark for 9ct gold (375 parts pure gold per 1000 parts alloy)
The scales is the convention or common control mark. There are a number of european countires who test and mark precious metal in the same way as we do. The scales mark means that goods can be imported and exported between these european countires without the need for further restesting.
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Hallmarking in Great Britain by: Anonymous
Hi Clare your wedding ring sounds lovely. You might like to try the link Hallmarking in Great Britain as it contains lots of info on UK British hallmarks and the assay office mark and answers most of your questions.
It sounds like the scales are International Convention MARKS. This mark is used by countries including the United Kingdom that are signatories to the International Convention of Hallmarking and is recognized by all those countries.
