IONIA. Kolophon. Circa 450-410 BC. Hemiobol (Silver, 8 mm, 0.48 g, 12 h). Facing laureate head of Apollo between two laurel leafs. Rev. Monogram of HM (mark of value) within incuse square. Klein 397. Milne, Colophon, 5. SNG von Aulock 7898. Slightly granular, otherwise, very fine.