Anonymous Commemorative AE4, Centenionalis or Nummus, RIC 156,

OBV: VRBS - ROMA - Roma helmeted, draped and cuirassed bust left
REV: GLOR-IA-EXERCISES ITVS Exe: SMH - Two soldiers standing, helmeted, each holding a spear and leaning on a shield between them, a sign topped by a military vexillum on which is a crown. R1
1.5g, 15mm
Minted at Heraclea, 336-7 AD
This is not a hybrid, but seems to have been the normal type for the last issue to hit Heraclea before the disappearance of Constantine

Sammlung : Constantine Era (Constantine the Great to Julian II)