Constantine I AR Miliarense, Trier. AD 336-337. 4.22 g.

CONSTANTINVS MAX AVG, rosette-diademed, draped, cuirassed bust right.
CONSTANTINVS AVG, Four standards.

Mintmark SMTR.

RIC VII Trier 580; Gnecchi 7; Cohen 108.
Rare, rated R3

Image is from the Hess auction catalog, lot 1300, Dec. 1931.