Constans, AE follis, Lyons, AD 335-341.

FL IVL CONSTANS NOB C, laureate, draped and cuirassed bust right, seen from the back.
GLOR-IA EXERC-ITVS, two soldiers holding spears and shields 
with one standard between them, O on banner.

Mintmark: [crescent] SLG (crescent missing due to a blocked die).

RIC VII Lyons 278.
Rated R5, extremely rare.

Contributed by Richard DeMarco of carpediem numismatics, April 2017.