IONIA. Kolophon. Circa 450-410 BC. Trihemiobol (Silver, 11 mm, 1.29 g, 12 h). ΚΟΛΟΦ[...] Laureate head of Apollo to right. Rev. Kithara within incuse square. Milne, Colophon 23. SNG Copenhagen 138. Very rare. Somewhat granular, otherwise, very fine.
From the collection of G. Plankenhorn, formed since the 1960s (with collector's ticket).