AR Denarius (18mm, 3.34g, 6h). Rome mint, struck Sept 18, 90 - Sept 18, 91, ahgua.
IMP CAES DOMIT AVG GERM P M TR P X, head laureate right; IMP XXI COS XV CENS P P P, Flavian Minerva cult statue standing left, with thunderbolt and spear, shield at her left side (M3).
RIC 721 (C2), BMC 181, RSC 264.
Ex Dionysos.