Maximinus II (310-313), AE follis, Nicomedia, ca. 312 AD, 4.79 gr, 21 mm. 

IMP C GAL VAL MAXIMINVS PF AVG, laureate head right.
IOVI CONS-ERVATORI, Jupiter standing left, chlamys
hanging behind, holding Victory on globe and sceptre. 
Star over A in right field.
Mintmark SMN.
RIC VI Nicomedia 76, rated rare.

Contributed by www.artcoinsroma.it, Sept. 2011. 

Note: Although the letter in the right field resembles
an H, a comparison of that letter with the A in both
the obverse and reverse legends show that the "square A"
was typical for this engraver.