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Severina, AE Tetradrachm. Alexandria, Egypt. AD 270-275. 22 mm, dated year 6, AD 274-275. 

OYLP CEYHRINA CEB, diademed and draped bust right.
ETOYC S, Eagle standing left, head right. 

Dattari 5506; BMC 2380; Milne 4463; Curtis 1820.