Constantine I. AD 307/310-337. Rare !!!

Ancient Coins - Constantine I. AD 307/310-337. Rare !!!
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Constantine I. AD 307/310-337. Æ Follis (22mm, 4.15 g, 6h). Rome mint, 1st officina. Struck AD 312-313. IMP CONSTANTINVS P F AVG, laureate, draped, and cuirassed bust right / S P Q R OPTIMO PRINCIPI, aquilla left between two vexilla; RP. RIC VI 351a. gVF. Rare.