Domitian AR denarius, Rome. AD 85. 3.14 g. 

IMP CAES DOMITIANVS AVG GERMANIC, laureate head right, with aegis.
PM TR POT IIII IMP VIII COS XI PP, Minerva walking right, holding shield and wielding spear.

RIC 257; BMCRE 71 (this coin).

Image courtesy of the British Museum.