Constantine I AE Follis. Siscia. AD 321.

Obv: CONSTAN-TINVS AVG, laureate head right.
Rev: CONSTANTINI AVGVSTI, VO-TIS-XX in three lines, 
mintmark dot ASIS dot below.

RIC VII Siscia 140, rated R3

Used with permission of TimeLine Originals (www.time-lines.co.uk), June 2009