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This was the only mark. Thank you for your input!

This is my grandmother's ring, and it dates before 1945. The turquoise cabochon stone is much later addition; the original stone was lost. I am interested in the dating and provenance of the ring. The fineness mark is 585. Thank you! https://i.postimg.cc/63rfm4Yr/DSC-0578.jpg https://i.postimg.cc/c1...

Hello, This brooch belongs to my grandmother and can be dated with certainty to before 1940. Please, help to identify the hallmark. Maybe this brooch is even older? https://i.postimg.cc/mk16kgwh/IMG-1863.jpg https://i.postimg.cc/nhnbRq2k/DSC-0577.jpg https://i.postimg.cc/Ls6SXjZX/DSC-0576-1.jpg Than...