Constantine II, AE follis of Cyzicus. 16 mm. 1.43 g.

CONSTANTI-NVS PF AVG, laureate and rosette diademed, draped and cuirassed bust left.
GLOR-IA EXERC-ITVS, two soldiers holding spears and shields with one standard between them. 

Mintmark: SMKA. 

RIC VIII Cyzicus 5 var (officina and headwear); Sear 17439 var (ditto).

With permission of Roma Numismatics E-Sale 35, Lot 1105, May 2017.
Note: the ANS has officinae B and Gamma (ANS ANS 1944.100.21530 and 1944.100.21531)