Very rare follis of Constans as ceasar.
In Roman Imperial Coinage there is not a variety with this officina.
Roman Imperial
Constans (337-350), Follis 332-335, Cyzicus mint
Obverse: pearl diademed, draped, cuirassed bust right
FL IVL CONSTANS NOB C
Reverse: two soldiers, helmeted, draped, cuirassed, standing facing each other, each holding spear in outer hand and resting inner hand on shield, between them two standards, •SMKΓ in exerque
GLORIA EXERCITVS
Diameter 17 mm, weight 2.10 g