Constantine II, AE follis, Siscia. AD 320.

CONSTANTINVS IVN NOB C, laureate, draped bust left, holding
Victory and mappa.
VIRTVS-EXERCIT, standard inscribed VOT X with bound
captive seated to left and right of its base.
S in left field.
F over HL (ligate) in right field.
Mintmark BSIS star

RIC VII Siscia 126, rated R3
Contributed by George Clegg (biggyg2), January, 2014