www.925-1000.com

Wow Pat, thanks!
I'll write to them (they don't seem to have email!) and see what they say.

Cheers, Marlee
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I have a ring of unknown origin: Welsh or possibly even colonial Malaysian??? Hence my confusion! It belonged to my mother who was born in 1942. Hallmarks: serif 'U' with an arrow through it from right to left, and 'STERLING' Images: http://i125.photobucket.com/albums/p79/BJaxx/HeartsRing.jpg http:/...