This antique pin measures 22mm x 18mm and is dated on the back 1833. It is hard to tell if the year is for the person initialed above it or if it a date stamp. The while working clasp appears to be a repair, but we have not polished piece at all. There are also the initials HB written above the date. If you look closely there is a small chip in the Crystal above the the hair, and two dents on the frame. It weighs 4 g. The are no markings for the metal, please be sure to view all photos prior to purchase.