Kleitor, Arkadia, AR Obol. 0.87 g. Before 431 BC. 9 mm, 0.88 g. 

Forepart of bridled horse left.
Mill-sail pattern in incuse square.

SNG Cop 217; BCD 1415 (this coin).

With permission of cngcoins.com, auction 162, Lot 68, April 2007.