This is an antique fob for a gentleman’s watch chain. It is not just a decorative piece, but a very useful one, because it contains a key to wind up a pocket watch. The key itself is mounted on the double sided fob, one side of which is set with a red carnelian, and the other side with a green bloodstone. The nicely engraved bracket is swivel-hinged, so that you can turn the actual key either to face toward the inside of the bracket to keep it save, or to face outward, ready for use. The two stones, on their own, are 1.6cm long and 1.3cm wide. The entire fob, including the hanger, is 3.6cm long with the key neatly tucked away, or 4.5cm long with the key pointing outward. The metal is 10 carat gold. There is the number 10 stamped inside a little cartouche on the mount around the stones. This fob must be at least Victorian, from a time before pocket watches were fitted with winding wheels. The fob weighs 5.76 grams and is in excellent condition throughout.