Constantine I. 3.12g; 18mm. 319 AD. Trier. 

CONSTANTI-NVS MAX AVG, laureate, helmeted and cuirassed bust right

VICTORIAE LAETAE PRINC PERP, two Victories holding shield inscribed VOT PR over altar. Altar type Helv. 5a2 (a star). 

Mintmark dot-STR. 

Cae Bardd hoard 2207-2208 (two found); RIC VII Trier 222 var 
(this combination of obv. break, altar type and mintmark is not in RIC). Extremely rare (R4).

With permission of Roma Numismatics, November, 2009