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Constantine II AE follis. Cyzicus. AD 333-334

CONSTANTINVS IVN NOB C, laureate, cuirassed bust right.
GLOR-IA EXERC-ITVS, Two soldiers standing facing each other, each holding a spear and shield; two standards between them. 

Mintmark SMK Gamma. 

RIC VII Cyzicus 81; Sear 17341.