Help With Identification "NN" Possible Niels Nielsen Ring?
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925ForumUser
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Help With Identification "NN" Possible Niels Nielsen Ring?
Hello! I have a blue pyrite ring with which is marked "Sterling NN." The NN is inside of a 6 sided diamond shape, and I believe it could possibly be Niels Neilsen, but I am not sure. I have supplied a picture of both the ring and the hallmark as a reference.