Silver denarius, 18mm, 3.25gm, issued AD 80/81 Rome mint.
Obv: CAESAR DIVI F DOMITIANVS COS VII, Laureate head right.
Rev: PRINCEPS IVVENTVTIS, Goat standing left, within laurel wreath.
The Amalthean goat raised Jupiter when he was an infant in Crete - the type alludes to Domitian's future as a successor to Vespasian and Titus.