Beautiful vintage 10K gold hand carved shell cameo brooch/ pin with the great details. Circa 1910

This is beautiful vintage 10 karat yellow gold hand carved 3 colors carnelian shell cameo brooch pin. Circa 1910. The pin measures 1 ½” x 1 ¼” including the filigree decoration around the bezel setting. The carving of the shell is exquisite. The pin-stem and safety catch are intact and functional. The back of the safety catch is marked, “10K”. Perfect condition,