Constantine I, AE follis, Ticinum. AD 314-315. 

IMP LICINIVS PF AVG, laureate head right.
SOLI INVI-C-TO COMITI, Sol standing left, chlamys across
left shoulder, holding globe and raising right hand.

Star in left field.
Mintmark S dot T.

RIC VII Ticinum 22; Sear 15293.
Very rare, rated R4.

Sold by Jesus Vico S.A. auction 147, Lot 444, March 2017.