Troas, Uncertain city, AR obol. 4th century BC. 10 mm, 0.9 g. 

Nike standing left on low cippus, holding wreath and stylis.
Bipennis with caduceus behind it.

Unpublished. Naumann 62, 176.

Other examples were sold by CNG E-400, lot 202; Pecunem 34, lot 209; Gorny & Mosch 212, lot 1785.
Very rare

With permission of Numismatik Naumann auction 62, Lot 176, Feb 2018.