Psophis, Arkadia, AR Hemiobol, 7mm, 0.56 g. 470-400 BC. 

The Keryneian hind running right.
E in dotted square within incuse square. 

BMC 5; BCD Peloponnesos 1674; Traite II-3, 931; . 

With permission of cngcoins.com, Mail Bid Sale 81, Lot 2728, May 2009.