Maximianus, AE Antoninianus, Ticinum. 292 AD.

IMP C M A MAXIMIANVS AVG, radiate, draped, cuirassed bust right.
IOVI CONSERVAT, Jupiter standing facing, looking right, holding 
sceptre in right hand and a thunderbolt in left.
B in left field.
Mintmark XXIT.
RIC VI-2, 561a var (obv. legend).

Contributed by Russell Stanley, Aug. 2011.

Note: The usual obverse legend for this coin is 
IMP C M VAL MAXIMIANVS AVG. The obverse legend of this
particular coin was otherwise only used (according to RIC)
in Heraclea and Antioch. However, this specific reverse,
of Jupiter standing facing with head right, holding the 
sceptre in his *right* hand and thunderbolt in his *left*
hand (usually the other way around), is listed only under
RIC 561a for Ticinum.