Very nice! The obverse is slightly double struck. Different dies from mine. It commemorate's the Judean triumph of Vespasian. Josephus mentions the spectacular horse Domitian was riding. Here's mine with notes CAES AVG F DOMIT COS II Laureate head of Domitian right No legend Domitian on horseback prancing left, right hand raised, holding human-headed (helmet) sceptre in left Rome 73 AD 3.25g Rare Sear 2627 RIC 680 (C) Ex-Forum The reverse depicts Domitian participating in the Judaea Capta triumph of 71 A.D. He is, as Josephus described him, riding alongside in magnificent apparel and mounted on a horse that was itself a site worth seeing.
The previous posts have told the story. 19 mm. Domitian. Struck AD 73. The reverse has an elegance from its simplicity and lack of clutter, which is quite uncommon on Roman coins, although a feature of many Greek city-state coins. I'd like to see more Roman coins with uncluttered reverses. Should that make a new thread?
I own a base metal example: Domitian, 81 – 96 AD Æ As, Rome Mint, 29mm, 11.24 grams Obverse: CAESAR AVG F DOMITIAN COS II, Laureate head of Domitian right. Reverse: S C, Domitian on horseback rearing left, holding human headed scepter in left and raising right. References: RIC672