MESOPOTAMIA. Edessa. Caracalla. 198-217. BI Tetradrachm (12.64 gm; 25 mm). Struck 215-217. Radiate and cuirassed bust of Caracalla to right, seen from behind / Eagle with spread wings standing facing, head to right and holding wreath in beak; between the eagle's legs, shrine. Prieur 850. Choice EF. Lightly toned.