Province Thrace
City Byzantium 
Region Thrace
Reign Severus Alexander
Obverse inscription ΙΟΥΛΙΑ ΜΑΜΑΙΑ ΑΥΓΟ
Obverse design diademed and draped bust of Julia Mamaea, r.
Reverse inscription ΕΠ ΦΡΟΝΤΩΝΟϹ ΒΥΖΑΝΤΙΩΝ
Reverse design Poseidon standing, r., holding dolphin and trident, placing foot on prow


Museum Archaeological Museum, Istanbul (Turkey)
Inventory no. 384
Reference Schönert-Geiss, Byzantion 1783 (found in Troy)
Diameter 26
Weight 10.29