Hope you can read all the markings on the back; this is a very finely made cameo. On the back I can make out,'12K GF' , but I can't read the others. In great condition and much finer than shown! Would make a fine gift! Please look closely at all my photos as they are the major part of my description!Feel free to ask any questions if I left out anything important! Kindly take a moment to check out the great sale in my store! Check out my other items. I have literally thousands of items to list, from antique photos to barkcloth (and a collection of original paintings), jewelry, paper items and everything in between. It will take me quite a while to get it all listed so please check back often! Be sure to add me to your favorites list. I have the good fortune to have acquired a lifetime of collectibles and antiques which I will be offering for sale. I take good photos and make every effort to give the best and most accurate descriptions of items to earn your trust and repeat business! The item "Antique gold marked fine cameo brooch pin vintage jewelry carved ornate shell" is in sale since Wednesday, November 21, 2018. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Costume\Retro, Vintage 1930s-1980s\Cameos". The seller is "kingstonfound" and is located in Poulsbo, Washington. This item can be shipped worldwide.