Coin is:
MAXIMINUS II AE21mm 4.12g Follis (aVF)
AV: IMP C GAL VAL MAXIMINVS PF AVG; laureate draped cuirassed bust r.
REV: HERCVLI VICTORI; Farnese Hercules standing r. leaning on lion's skin on club; delta I in left field.
EXE: ANT* Antioch mint
REF: apparently unlisted variation, similar to RIC VI Antioch 170b - either an error in RIC or unlisted for this variation of officina letter location in the left field and ANT*, RIC lists ANT* w/ officina letters in r. field and ANT (no star) w/ officina letters in l. field.
Is it possible that I could have misread RIC about the location of officina letters on this issue and so their position either in the left or right fields is, thus, inconsequential?