9.86g
This coin was struck in Lugdunum during the brief time that Maxentius and Constantine were allied (Fall 307-Summer 308). The Lugdunum mint was in Constantine's territory.
Obv: Bust of Maxentius right "IMP C M A VAL MAXENTIVS PF AVG"
Rev: Genius standing left holding patera and cornucopiae "GENIO POP ROM" "PLC" in exergue.
RIC 256