Very rare R5 in Roman Imperial Coinage catalogue.
Coin in NGC slab with AU grade.
Roman Imperial
Constantine II (337–340) - as Caesar 317–337, Follis 317, Heraclea mint
Obverse: laureate, draped and cuirassed bust right
D N FL CL CONSTANTINVS NOB C
Reverse: camp gate with three turrets, without doors, •MHTE• in exergue
PROVIDENTIAE CAESS