Constantine I, AE folles. Rome. AD 312-313. 21 mm, 2.74 g.

FL VAL CONSTANTINVS, radiate, draped bust right, seen normally.
VIRT EXERCIT GALL, Virtus, standing slightly left, looking right, holding parazonium and leaning on reversed spear.

X-VI across fields.

Mintmark RS. 

RIC VI Rome 359.

With permission of Leu Numismatik Auction 26, Lot 5258, July 2023.
Ex Dr. L. Ramskold.

Note, RIC lists only officina S, but P, T and Q are also known. see notinRIC.