Tetrobol

Sermyle was a small Chalcidian colony on the Sithonian peninsula of Macedon, and its coinage is rare enough that the city itself is better known from Thucydides' account of its surrender to Brasidas in 424 BC than from any numismatic abundance. Issues attributable to Sermyle appear in only a handful of major collections, with the Weber and AMNG references between them documenting fewer than a dozen distinct specimens across all denominations.