Hemiobol

Kyzikos was among the most commercially active mints on the Propontis, and its fractional silver — particularly the tiny hemiobols — circulated as the working currency of a port economy that handled grain, fish, and slaves moving between the Black Sea and the Aegean. The tuna that appears on so many Kyzikene issues was no decorative choice: the city's wealth was built substantially on the seasonal bluefin migration through the straits, which it taxed and processed for export across the Greek world.

At 0.37g, attrition and loss rates for pieces this size were extraordinary, which explains the relative difficulty in locating examples with full flans despite the city's prolific output across this period.