Watch List notes:

CORINTHIA, Corinth. Hadrian. AD 117-138. Æ Dupondius (26mm, 13.94 g, 5h). Struck AD 117-119. Laureate and cuirassed bust right / Isthmus standing right, holding rudder in each hand. RPC III 115.1 = BCD Corinth 589 (this coin). Fine, green patina, with some red. Extremely rare, with RPC citing just this specimen.

Ex BCD Collection (Lanz 105, 26 November 2001), lot 589.