Macedonian Kingdom. Perdiccas III. 365-359 BC. AR Diobol, 0.85g. 
Pella mint.

Obv: Head of bearded Herakles facing right, wearing knotted lion-skin. Rev: P-E-R, Club and bow crossed, all within incuse square. 

cf BMC 3 (Pediccas II); Mionnet Supp. III, 20 (same); 

Gemini, LLC Auction VI (10th Jan.2010), lot 63
Sold for $5,000 

With permission of Gemini Auctions, Jan. 2010.