MESOPOTAMIA, Carrhae. Caracalla. AD 198-217. AR Tetradrachm (25mm, 12.34 g, 6h). Struck circa AD 215-217. Laureate head right / Eagle standing facing on bull's head flanked by pellets, head right and tail left, with wings spread, holding wreath in beak. Prieur 820. Some porosity, a few light scratches and marks. VF.