Crispus AE3. 320 AD. 

Obv: CRISPVS-NOB CAES, laureate, draped & cuirassed bust right 
Rev: VICTORIAE LAET PRINC PERP, two Victories holding shield inscribed VOT PR 
 over plain, garlanded altar. 
Mintmark: P [2 captives] L. 

RIC VII Lyons 86, rated R5 (the one listed in RIC is in Vienna)

Courtesy of the Steinmetz Collection, 1999.