Watch List notes:

KINGS OF BITHYNIA. Prusias I Chloros, circa 230-182 BC. Tetrachalkon (Bronze, 27 mm, 10.38 g, 1 h), Nikomedia. Laureate head of Apollo to left; c/ms: head of Artemis left within circular incuse; and lyre within rectangular incuse. Rev. ΒΑΣΙΛΕΩΣ ΠΡΟΥΣΙΟΥ Helmeted and winged figure of Athena-Nike standing to left, crowning the king's name with wreath held in her right hand and resting her left on a shield by her side; in field to left, monogram. HGC 7, 615. RG 223, 16. SNG von Aulock 248 (with these countermarks). Dark green patina. Light cleaning marks, otherwise, very fine.