they look like antique pearls by using a "925" stamp on 1 aspect of clasp & "OW" & a world in bins, so 3 bins that contains Every single letter & a single image. just like this graphic I made. however, it could be https://deannaejzh202272.atualblog.com/34839869/south-sea-pearl-strand-necklace-no-further-a-mystery