MESOPOTAMIA. Carrhae. Caracalla, 198-217. Tetradrachm (Billon, 24 mm, 13.65 g, 6 h), 215-217. ΑΥΤ Κ Μ Α ΑΝΤΩΝЄΙΝΟC•CЄΒ Radiate head of Caracalla to right. Rev. ΔΗΜΑΡΧ•ЄΞ•ΥΠΑ•ΤΟ•Δ• Eagle with spread wings standing facing, head to right and holding wreath in beak; between the eagle's legs, crescent; to upper left, star; in exergue, ••. Prieur 830. Minor flan faults, otherwise, very fine.