Divus Maximianus Herculius. AE Half Follis 16 mm, 1.98 g. Trier mint, AD 318. 

DIVO MAXIMIANO OPT IMP, veiled and laureate head right.
REQVIES OPT dot MER, the late emperor seated left, holding 
short sceptre, right hand raised.

Mintmark STR.

RIC VII Trier 205; Sear 16406

With permission of Tom Vossen on vcoins.com, item 13442.
(as RIC 200 in error).