Hemiobol

Tragilos was a small coastal town in the Bisaltia region of ancient Macedonia, positioned along the Strymon River near its mouth. Its coinage is exceptionally rare — the city's independent mint output was limited before it fell under Macedonian dominance, and the hemiobol denomination, already the smallest practical silver unit in most Greek monetary systems, survives in very few examples from this issuer. The AMNG III reference places this squarely among the minor Thracian-Macedonian civic issues that numismatists have historically struggled to attribute with confidence.