Watch List notes:

LESBOS. Methymna. Circa 350/30-250/40 BC. Triobol or Hemidrachm (Silver, 14 mm, 2.59 g, 6 h). Helmeted head of Athena to right. Rev. ΜΑ-ΘΥ Kantharos; above, monogram of EK; all within double linear square border. Franke 15. HGC 6, 906. Toned. Porous, otherwise, about very fine.

From the Vineyard Collection, ex Coin Galleries 119, 10 November 1998, 65.