Watch List notes:

SELEUCIS and PIERIA, Antioch. Herennia Etruscilla. Augusta, AD 249-251. BI Tetradrachm (26mm, 11.71 g, 6h). 5th officina. Draped bust right, wearing stephane, set on crescent; ••••• below / Eagle standing left on palm frond, with wings spread, holding wreath in beak; S C in exergue. Prieur 621 (this coin); McAlee 1168e; RPC IX 1753/3 (this coin cited). Toned, some roughness and deposits. VF. Extremely rare, seven known to Prieur, and none, correctly attributed, in CoinArchives.

From the Michel Prieur Collection. Ex Elsen 9 (6 February 1988), lot 87.