IONIA. Kolophon. Circa 500-450 BC. Hemiobol (Silver, 8 mm, 0.42 g, 6 h). Facing head of Apollo. Rev. Monogram of HM (value mark) within incuse square. Milne, Colophon 4. SNG Kayhan 355. Light die break on the reverse , otherwise, good very fine.

From a Swiss collection, privately acquired from LHS Numismatik in February 2009.