Watch List notes:

MESOPOTAMIA, Carrhae. Diadumenian. As Caesar, AD 217-218. AR Tetradrachm (26mm, 13.39 g, 1h). Laureate, draped, and cuirassed bust right / Eagle standing right on facing bucranium, with wings spread and wreath in beak. Prieur 829 var. (bust seen from behind). VF. Extremely rare, and apparently unpublished with bust seen from the front.