Philipp II of Macedonia, AR One-fifth Tetradrachm or Tetrobol. 2.34 gr, 13.62 mm. Uncertain mint. 359-336 BC.
Obverse: no legend, Youthful, unbearded, diademed male head right.  
Reverse: FILIPPOY, Youth on horseback right, MPT monogram and dot below.  
Müller 299; Mionnet -; Sear -.

Courtesy of TimeLine Originals (www.time-lines.co.uk), March, 2011