Watch List notes:

LESBOS. Mytilene. Circa 521-478 BC. Hekte (Electrum, 9 mm, 2.59 g, 9 h). Head of lion with open jaws to right; dotted truncation. Rev. Head of a calf to right, with truncation marked by an incuse rectangle; all incuse. Bodenstedt 12 e/ε. A very attractive, sharp, toned, and beautifully centered example. Extremely fine.
From the collection of a European specialist, ex Nomos 14, 17 May 2017, 137.