Watch List notes:

MESOPOTAMIA, Edessa. Diadumenian. As Caesar, AD 217-218. AR Tetradrachm (25mm, 13.76 g, 12h). Bareheaded, draped, and cuirassed bust right / Eagle standing facing, head right, with wings spread, holding wreath in beak; between legs, shrine with pediment. Prieur 868A (this coin). Toned, minor porosity and deposits. VF. Extremely rare, only one noted by Prieur, and three, including this coin, in CoinArchives.

From the Michel Prieur Collection. Ex Classical Numismatic Group 41 (19 March 1997), lot 1491.