Constantius I, AE Follis of Nicomedia.

IMP C FL VAL CONSTANTIVS PF AVG, laureate head right. 
GENIO POPVLI ROMANI, Genius standing left, modius on head, naked but for chlamys over left shoulder, holding patera from which liquid flows, and cornucopiae. 

Mintmark SMNB. 

RIC VI Nicomedia 39a; Sear 14181.
Rated rare.
Contributed by CarpeDiem Numismatics, Dec. 2023.