MODERN BULGARIAN FAKE, artificially aged of Bastareus, king of Paeonia, AR tetradrachm, ca 400 BC. 

Large crested helmet right in border of dots. 
BASTAREOS above bull butting right, head facing, in border of dots. 

MODERN FAKE OF Paris 20; AMNG III, 16 etc.

Compare the small details, especially of the tuft separations of the helmet crest, and the ear flap of this fake with the genuine coin (above)