Watch List notes:

THRACE, Anchialus. Gordian III. AD 238-244. Æ Tetrassarion (27mm, 14.70 g, 1h). Laureate, draped, and cuirassed bust of Gordian right vis à vis draped bust of Tranquillina, wearing stephane right / Galley under sail right, with captain and oarsmen, waves below. Tachev, Anchialos 712 (this coin); RPC VII.2 1155.13 (this coin); AMNG 682; Varbanov 772. Green-brown patina, slight roughness. VF.

From the Dr. Michael Slavin Collection. Ex Lanz 117 (24 November 2003), lot 1071.