Province Bithynia-Pontus
City Nicaea 
Region Bithynia
Reign Severus Alexander
Obverse inscription ΙΟΥΛΙΑ ΜΑΜΑΙΑ ΑΥΓ
Obverse design draped bust of Julia Mamaea, r.
Reverse inscription ΝΙΚΑΙΕΩΝ (or ΝΙΚΑΙΕΩΝ)
Reverse design three military standards, topped by wreaths

 

Reference CNG EA 380, 10 Aug. 2016, lot 407
Diameter 20
Weight 4.84
Axis 7
External URI of the coin http://pro.coinarchives.com/a/lotviewer.php?LotID=917669&AucID=1753&Lot=407 
Note