Watch List notes:

THRACE, Byzantion. Alliance coinage with Kalchedon. Late 3rd-2nd centuries BC. Æ (22.5mm, 7.02 g, 12h). Laureate head of Apollo right / Tripod. Schönert-Geiss, Byzantion 1283–9; Türkoğlu A3a; HGC 3, 1427. Brown surfaces, green deposits, pit on reverse. VF.