Tritartemorion

Selymbria, a Megarian colony on the Propontis, struck fractional silver during a period when the city occupied a strategically awkward position between larger Thracian and Persian pressures. The tritartemorion — three-quarters of an obol — represents a denomination so small it existed purely to service retail transactions that even the obol couldn't cleanly divide. At 0.46 g, these were struck in limited quantities and the HGC 3.2 variant designation suggests meaningful die differences from the primary type remain only partially catalogued.