Constantine I AE Follis. Siscia. AD 309-310

Obv: CONSTANTINVS FIL AVGG, laureate head right 
Rev: GENIO A-VGVSTI, Genius standing left, modius on head, naked 
except for chlamys over left shoulder, holding patera and cornucopiae.

Crescent in left field, Gamma in right field.
Mintmark: SIS. 

RIC VI Siscia 200b, rated scarce. 309-310 AD

With permission of Numismatik Lanz, auction 97, lot 987.