AR Denarius (20mm, 3.31g, 7h). Rome mint, struck Jan 1 - c. Sept 15, 92.
IMP CAES DOMIT AVG GERM P M TR P XI, head laureate right; IMP XXI COS XVI CENS P P P, Aventine Minerva replica (ἀπεικόνισμα) standing right on processional litter (ferculum), with spear and shield, owl to right (M2).
RIC 730 (C3), BMC 189, RSC 274, this coin illustrated on www.romancoins.info (section imagines imperatorum), this coin selected for an upcoming (Summer, 2017) book about Roman portraits on coins.
Ex NAC, ex AMP coll. of Roman Numismatic Portraiture.