Caracalla, AR denarius, 198 AD. Rome mint. 

IMP CAE M AVR ANT AVG P TR P, laureate, draped bust right.
SPES PVBLICA, Spes walking left, holding flower and raising hem of robe.	

RIC 26a; RSC 599; Sear (1988) 1957.

Sold on yahoo auction site by kendorney for $25 in June 2001.