Province Thrace
City Byzantium 
Region Thrace
Reign Severus Alexander
Obverse inscription ΙΟΥΛΙΑ ΜΑΜΑΙΑ ΑΥΓΟ
Obverse design diademed and draped bust of Julia Mamaea, right
Reverse inscription ΕΠ ΦΡΟΝΤΩΝΟϹ ΒΥΖΑΝΤΙΩΝ
Reverse design Poseidon standing facing, head left, holding dolphin and trident


Museum National Museum, Warsaw (Poland)
Inventory no. 55824
Reference Schönert-Geiss, Byzantion 1779.2
Diameter 27
Weight 9.20