Constantine I 'The Great' - With two Victories: 318-320 A.D.
Bronze Antioch mint, struck 330-335 A.D.

Observe - Bust left, with close-fitting helmet, with short high crest at top, spear over far shoulder.
PARL in exergue.

RIC Arles 192, struck 319.

Reverse - obverse bust right, again in a close-fitting helmet but this one has a long, low, crest.

ASIS* in exergue.
RIC Siscia 47, struck 318

The "Two Victories" reverse illustrated here was common on copper coins of Constantine from 318-320. It was occasionally imitated in the west, and commonly imitated in the Balkans (a term I will use for the region of the former Yugoslavia northward to the border between Austria and Hungary). Since the 1990s many ancient Balkan imitations of Constantine's "Two Victories" reverse type have been coming to market.

The Constantine "Two Victories" reverse. An official example from the mint of Arles.
Two Victories holding a shield inscribed VOT/PR over an altar, VICTORIAE LAETAE PRINC PERP around.