Troas, Uncertain, possibly Neandria. AR Hemiobol. 5th century BC. 6.5mm, 0.22 g. 

Crested Corinthian helmet right.
Amphora within dotted square. 

SNG Kayhan 1137; SNG Turkey 9, 672–676 (both as Neandria). 

With permission of cngcoins.com, auction 452, Lot 321, Sept. 2019