Maximianus antoninianus, Lyons mint. AD 287-289. 22 mm, 3.66 g. 

IMP C VAL MAXIMIANVS AVG, radiate, draped and cuirassed bust right.
HERCVLI PACIFERO, Hercules, naked, standing left, holding 
branch and club. 
B in left field. 
Mintmark SML.

RIC V 372; Cohen 280. 
(RIC rarely mentions a cuirass seen at the shoulder on the obverse)

With permission of Auktionshaus H. D. Rauch Summer Auction 2008, Lot 1112, Sept. 2008.