MESOPOTAMIA. Edessa. Caracalla, 198-217. Tetradrachm (Billon, 27 mm, 12.16 g, 12 h), 215-217. ΑΥΤ Κ Μ ΑΥ ΑΝΤΩΝEΙΝΟC CEΒ Radiate and cuirassed bust of Caracalla to right. Rev. ΔΗΜΑΡΧ EΞ ΥΠΑΤΟC ΤΟ Δ Eagle with wings spread standing facing, head right, holding wreath in beak; between legs, shrine. Prieur 850 (same obverse die). About extremely fine.