Aemilian. 253 AD. AR Antoninianus (3.08 gm). 

IMP CAES AEMILIANVS PF AVG, radiate and draped bust right
SPES PVBLICA, Spes standing left with flower & lifting skirt. 

RIC 20, RSC 48; Sear5 9844

With permission of Numismatik Lanz, 2006, sold for 350 Euros.