AR Denarius (18mm, 3.19g, 6h). Rome mint, struck Jan 1 - Sept 18, 90, bhgdg.
IMP CAES DOMIT AVG GERM P M TR P VIIII, head laureate right; IMP XXI COS XV CENS P P P, Aventine Minerva replica (ἀπεικόνισμα) standing right on processional litter (ferculum), with spear and shield, owl to right.
RIC 690, BMC 166, RSC 262.
Ex Artemida Aste.