Crispus AE follis of Trier. AD 317-318.

FL IVL CRISPVS NOB CAES, laureate, draped and cuirassed bust right, seen from the back.
CLARITAS REIPVBLICAE, Sol, radiate, standing left, holding 
globe and raising right hand.

F-T across fields. 
Mintmark BTR. 

Rated R4 in RIC.

Sold by Gorny & Mosch, auction 215, Lot 530, Oct. 2013.
Attributed as RIC VII 176 in error.