Watch List notes:

ROMAN EMPIRE. Commodus, 177-192. Aureus 176-177, Rome. Obv. COMMODO CAES AVG FIL GERM SARM. Bareheaded, draped and cuirassed bust of Commodus to right. Rev. PRI-NC IVVENT. Commodus, as first among the young, in military dress, standing to left, holding branch in his extended right hand and reversed spear in his left; to right, military trophy with a round shield at the base. Calicó 2316 (same dies). AU. 7.17 g. NGC choice AU 5/5 4/5
Ex. Numismatica Ars Classica Auction 33, 6 April 2006, lot 512.
Extremely rare. Only 3 examples sold in the last 20 years. It is scarcer than the usual reverse with Castor.