Sinope, Paphlagonia, AE31, Late 2nd Cent. - early 1st Cent. BC.

Obv: Head of Athena right, wearing triple-crested helmet 
ornamented with Pegasos. 
Rev: Perseus sandaing facing, holding harpa in right hand 
and severed head of Medusa in left hand, whose decapitated 
body lies at his feet. SINQ-PHS across fields, ME monogram
 to left.

BMC 44 (var); SG 3707

Courtesy of akropoliscoins.com, Jan. 2011