Commodus. Quinarius

Commodus; 177-192 AD, Rome, 178 AD, Quinarius, 1.26g. King-p. 334, no. 23A (this coin). Obv: L AVREL COM - MODVS AVG Bust laureate, draped r. Rx: COS - P P on l. and r., Victory advancing l. holding wreath and palm. Ex Curtis L. Clay Collection; ex G. Hirsch 223, 26 Sept. 2002, lot 2186. Apparently unique as a silver quinarius. The same dies were also used to strike a single surviving gold quinarius: King-23, pl. 17.This quinarius is the only one recorded in a recent book, and thus highly unusual, as frequently when a book is written, other coins come to light. EF