Constantine I, AE follis. Arles. AD 316.

IMP CONSTANTINVS PF AVG, laureate, draped, cuirassed bust right.
GENIO-POP ROM, Genius standing left, hair rolled with turret? 
at the front, naked but for chlamys over left shoulder, 
holding patera and cornucopiae.
T over star in left field.
F in right field,
Mintmark PARL.

RIC VII Arles 78.
Of the highest rarity, rated R5.

Ebay sale, Jan. 2015 but sadly not bought by Robert E.