Philip II, King of Macedonia. 359-336 BC. AE Unit - 19mm, 5.24 g. Miletos mint. Struck ca 323 BC. 

Diademed head of Apollo right.
FILIPPOY, rider on horse galloping right; M below. 

SNG Cop 587; SNG ANS 938

With permission of cngcoins.com, Triton V Sale, lot 303, Jan 2002, lot 303.
(described as unpublished in error)