Mysia. Gambrion AR Diobol. ca 400 BC. 1.32 g. 

Head of Apollo right, hair bound in a taenia.
(normally with ΓAM above), forepart of bull butting left. 

BMC 1 var (bull right); Sear SG 3868 var (ditto). Emporium Hamburg 77, 139.

With permission of Emporium Hamburg - Auction 77, Lot 139, Nov 2016.