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Constantius I, AE follis of Cyzicus. AD 305-306.
IMP C FL VAL CONSTANTIVS PF AVG, laureate head right.
GENIO POPV-LI ROMANI, Genius standing left, modius on head,
naked but for chlamys over left shoulder (falls low),
holding patera and cornucopiae.

Mintmark KB.

RIC VI Cyzicus 21a; Sear 14182.