ACHAIA, Achaian League. Elis. Circa 50 BC. AR Hemidrachm (15mm, 2.39 g, 6h). 

Obv: Laureate head of Zeus right; monogram before 
Rev: AX monogram; monogram above and to right, FA to left, thunderbolt below; 
 all within wreath. 

Clerk 261; BCD Peloponnesos 685 (this coin); SNG Cop 306. 

From the BCD Collection (LHS 96, 8 May 2006), lot 685. 
With permission of cng, auction 160, lot 33, March 17, 2007.