925 Silver Marcasite Articulated Roman Chariot Brooch

From my family's estate! Roman or Greek Soldier driving a chariot with flowing whip two horses. Dazzling marcacite covers this fine quality heirloom pin! The chariot wheel actually spins. Hallmarked 925 on the back. Very finely crafted. Pin works well, no defects. See pics for best description as I'm not a jeweler. I do know this brooch is around 45 years old as I remember seeing it on my grandmother as a child! One of a kind custom accessory!