AR Denarius (18mm, 3.26g, 7h). Rome mint, struck Jan 1 - Sept 18, 90, bghan.
IMP CAES DOMIT AVG GERM P M TR P VIIII, head laureate right; IMP XXI COS XV CENS P P P, Aventine Minerva cult statue standing right, with spear and shield (M1).
RIC 689 (C2), BMC 164, RSC 261.
Private purchase.