Psophis, Arkadia, AR Tetartemorion, 8mm, 0.27 g. 450-420 BC. 

Fish left.
Psi W, Head of the Keryneian hind left. 

BCD Peloponnesos 1682; cf Traite II-3, 930. 

With permission of cngcoins.com, Auction 238, Lot 110, Aug. 2010.