THRACIAN CHERSONESE. 480-350 BC. AR Hemidrachm (2.38gm). 

Obv: Forepart of lion, head reverted.
Rev: Quadripartite incuse square, dot and AG monogram
and amphora in two quarters.
symbol. 
BMC Thrace 21; Weber 2406; McClean 4066; Dewing 1305; 
SNG Copenhagen 837; Berlin I, 43. 

Courtesy of londonancientcoins on deamoneta.com, Dec. 2010