Antique 18k Yellow Gold Chrysoprase Spinning Fob

Antique 18k Yellow Gold Chrysoprase Spinning Fob. This is a beautiful fob with a spinning chrysoprase that has 3 sections where one could engrave their seal or monogram. The fob is marked with a makers mark and 750 for 18k yellow gold. The fob measures 40mm high with 23mm wide. It is in excellent condition. Weight 13 grams.