Constans, AV solidus. Constantinople. 21mm, 4.20 g.

FL CONSTANS NOB CAES, laureate, draped and cuirassed bust right.
PRINCIPI IVVENTVTIS, Constans standing left, holding 
standard and sceptre, one standard behind him.

Mintmark CONS.

RIC VII Constantinople 113 var (emperor and only one standard behind.)

Courtesy of the Devine collection.
Discovered in France.