Maximianvs AE Antoninianus. Lyons mint, 290-294 AD. 

IMP MAXIMIANVS AVG, radiate bust left wearing imperial mantle, holding 
eagle-tipped sceptre.
SALVS AVGG, Salus standing right, feeding serpent in arms. 

C in ex. 

RIC 422; Cohen 519.

With permission of T&S Petrov Art Numis, August 2012.