Caracalla. Denarius

Caracalla; 198-217 AD, Rome, 217 AD, Denarius, 2.39g. BMC-188 note, citing Riv. ital. 1907, p. 182. Obv: ANTONINVS PIVS AVG GERM Head laureate r. Rx: P M TR P XX - COS IIII P P around, Serapis standing r., head l., wearing kalathos, raising r. hand and holding scepter with lowered l. hand. Ex Curtis L. Clay Collection; acquired from Ancient Treasures, eBay, 22 Nov. 2007. This variant of Caracalla's Serapis Standing type is common on denarii and antoniniani with date TR P XVIIII, but rare on those with date TR P XX, none such occurring in the Reka Devnia hoard, apparently because the type was discontinued soon after the beginning of the new tribunician year.. Virtually MS