Severus II, AE follis. Aquileia, AD 306-307. 28mm, 9.55 g. 

IMP C SEVERVS PF AVG, laureate head right
FIDES MILITVM AVGG ET CAESS NN, Fides standing facing, head 
left, holding two standards.

Mintmark AQP. 

RIC VI Aquileia 76b; Sear 14666.

With permission of cngcoins.com, July 2011
Estimate $100.