Caracalla. Denarius, 215 AD, Rome. 3.33 g. 

ANTONINVS PIVS AVG GERM, laureate head right.
P M TR P XVIII COS IIII P P, Aesculapius standing left, holding
serpent-entwined staff, globe at foot right.

RIC 251. C. 302 corr. BMC 103. Hill (1964) 1507. 

With permission of Helios Auction 5, June 2010, lot 320.
Added in Aug. 2011.