Watch List notes:

Thrace, Byzantion Æ 21mm. 3rd century BC. Laureate head of Apollo to left / Obelisk on omphalos(?) overstruck on Prow or Trident type(?). Cf. HGC 3.2, 1413, 1416 & 1417. 6.27g, 21mm.

Good Fine.

From the inventory of a UK dealer.