Herakleia Pontike, Bithynia. AR obol, Struck under the tyrant Klearchos, ca 364-352 BC. 10mm, 0.69 g. 

HRAK beneath head of Herakles left, wearing lionskin headdress. 
K to left of trophy, quiver to right.

Weber 4879; SNG BM Black Sea 1593; Hoover HGC 477.

Very rare.

With permission of cngcoins.com, auction 313, Lot 53, Oct. 2013.