Old Artist Signed Shell Cameo Sterling Silver Pendant Fine Jewelry

Beautiful old carved shell cameo, signed by the artist on the back, set in fine marked sterling silver mounting. This cameo features a lovely young lady with flowers in her hair and on her bodice. The cameo is original to the fine sterling silver mounting. The mounting has the 925 marked on the back with an additional signature of what appears to be "YM 689" and a star. The pendant measures 1" by 3/4" not counting the bale, and both cameo and mounting are in good condition. The last photo is the cameo held up to lighting to show detail.