Watch List notes:

SELEUCIS and PIERIA, Antioch. Herennius Etruscus. As Caesar, AD 249-251. BI Tetradrachm (26mm, 12.87 g, 12h). 6th officina. Struck AD 250-251. Bareheaded, draped, and cuirassed bust right; VI below bust / Eagle standing facing on ground line, head and tail right, with wings spread, holding wreath in beak; pellet between legs, S C in exergue. Prieur 643 (this coin); McAlee 1157; RPC IX 1784/6 (this coin cited). Toned, some porosity. VF. Extremely rare, three known to Prieur, and none in CoinArchives.

From the Michel Prieur Collection.