A nice piece with well preserved details.
An item appreciated by the authors of the RIC catalog with a high rarity grade of R2 meaning that 7 to 10 pieces were known to them.
Obverse: head of Augustus in laurel wreath, to the right, in the rim legend:
CONSTAN-TINVS AVG;
Reverse: camp gate of 8 rows of bricks, with open gate, in the rim legend:
PROVIDEN-TIAE AVGG; in section SMKE, in right field -;
Bronze, diameter 19 mm, weight 2.85 g, axis 12 h.