Watch List notes:

KINGS OF BITHYNIA. Prusias I Chloros, circa 230-182 BC. Tetrachalkon (Bronze, 29 mm, 10.38 g, 12 h). Laureate head of Apollo to left; on neck, uncertain circular countermark. Rev. ΒΑΣΙΛΕΩΣ / ΠΡΟΥΣΙΟΥ Helmeted and winged figure of Athena-Nike standing to left, crowning the king's name with her right hand and resting her left on a shield by her side; in field to left, monogram. RG 16. SNG von Aulock 6880. A splendid example, struck on a broad flan and with a very dark green, glossy patina. Extremely fine.