BITHYNIA. Herakleia Pontika. Circa 530-520 BC. Hekte (Electrum, 10 mm, 2.54 g, 11 h). Head of Herakles to left, wearing lion skin headdress. Rev. Quadripartite incuse square. BMC 7-11 ('Erythrai'). W. Fischer-Bossert: Die Elektronhekten mit dem Herakleskopf: Herakleia Pontike, nicht Erythrai, in: NZ 126 (2020), Group 16. SNG Kayhan 737-8 ('Erythrai'). SNG von Aulock 1942 ('Erythrai'). Struck from somewhat worn dies and with a light scratch on the obverse, otherwise, very fine.

From a British collection of electrum coins from Lesbos and Ionia, formed in the early 2000s.