Troas, Uncertain, possibly Neandria. AR Hemiobol or Tetartemorion. 5th century BC. 6.5mm, 0.17 g. 

Crested Corinthian helmet left.
Amphora within square, a dot at lower left and right.

SNG Turkey 9, 682 var (no dots, attributed to Neandria). 

With permission of cngcoins.com, auction 450, Lot 141, Aug 2019.