Constantine I. AE Follis. Lyons. 18 mm, 2.73 g. 

CONSTANTINVS AVG, helmeted, cuirassed bust right, wearing high crested helmet. 
VICTORIAE LAETAE PRINC PERP, Two Victories standing facing each other, holding a shield inscribed VOT PR over an altar decorted with X (Helvetica 4c).
Mintmark: two sitting captives. 

RIC VII Lyons 65.

With permission of Numismatik Naumann auction 87, Lot 686, March 2020.