This issue is only listed in RIC with the Emperor standing with head to the right but this one has his head to the left. This variant is not in Ferrando either.
Constantine I
Posthumous Issue
9 Sept 337- Spring 340
15mm 1.7gm
DIVO CONSTANTINO P, Veiled head right
AETERNA PIETAS [Everlasting Piety] Emperor in military dress, standing left, holding spear and globe.
In exergue PCONST
RIC VIII Arles --