Watch List notes:

BITHYNIA, Kios. Circa 345-315 BC. AR Quarter Siglos or Trihemiobol (13mm, 2.31 g, 1h). Persic standard. Demetrios, magistrate. Laureate head of Apollo right / Prow of galley left; ΔHM above, [E]TPIOΣ below. SNG Ashmolean –; HGC 7, 554 (unlisted magistrate). Toned, a few scratches on reverse, edge flaw. VF.

From the Lampasas Collection. Ex Baldwin Maull Collection (Classical Numismatic Group Electronic Auction 452, 18 September 2019), lot 311, purchased from Spink, 1960.