I am trying to authenticate a maker's mark on a sterling napkin ring. I am unable to post a photo as this sight can't upload from my PC. I don't have a web host to post the photo. The mark is a series of 3 boxes & a triangle that form a "Y" shape. In the top left is the letter "R", on the bottom, the letter "B" and on the right the letter: "L". It is followed by STERLING and the number 507. Any information would be appreciated.
Thanks you in advance: Nancy.
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