Hi thanks for writing in. There are MANY and I really do mean MANY, Lion face marks on metal. Without the benefit of a photo we cannot assume it is the UK - LONDON Town mark (Uncrowned LEOPARD Head) - ca 1822 - Present.
You are very welcome to upload a photo in a follow-up submission, as close-up to the marks as you possibly can get.
Could you please use "Lion Face Mark" in the subject heading of your submission in order to assign your photo to your original question here quickly.
The decimal karat mark of 375 is used for 9 carat gold. White gold as its name suggests is a white, silvery colored precious metal.
