This is an 18^th century brass fusee pocket watch hand-chased balance cock made into a ring. The ring mounting is silver, size 6, and has a fine open design. mounting is unmarked, but has been carefully tested and is guaranteed to be silver. The head of the ring measures 21mm x 24mm. the ring weighs 7.5 grams and is a size 6. Buyer pays shipping, $4 in USA. Thank you.