Ring stamp meaning? The inside is stamped with a diamond shape and the letters "STR" (2nd image). I assume STR means this is a sterling silver ring, but am curious what the
F in a Diamond
Metal Hallmarking Guide | Taylor & Hart
Jewelry Stamps: What Do They Really Mean?
Ring stamp meaning? The inside is stamped with a diamond shape and the letters "STR" (2nd image). I assume STR means this is a sterling silver ring, but am curious what the
Signature Hallmarks | Designer Jewelry | Tateossian USA
Jewelry Identification | Antique Jewelry University