Please help Classify - Ancient Greek

9mm, 0.5 grams, dark patinated silver.  

Corinthian helmet, left (no crest); 4 part incuse punch reverse.

Which city gets the attribution?  

Some put this as Skione, Macedonia.  https://www.acsearch.info/search.html?id=11530583

Some put this as Neadria, Troas.  https://www.acsearch.info/search.html?id=10976448

Some just put it in the “uncertain mint” pile within Ionia or Caria.  https://www.acsearch.info/search.html?id=11338241

As far as I can read, the first two sources say TROAS, Neandria. So I would strongly assume that the coin comes from this region. I think the Skione in Macedonia only refers to the source or 'place of discovery'.

According to the weight it could be an obol or tritartemorion.

SirFabsi

As far as I can read, the first two sources say TROAS, Neandria. So I would strongly assume that the coin comes from this region. I think the Skione in Macedonia only refers to the source or 'place of discovery'.

 

According to the weight it could be an obol or tritartemorion.

https://www.acsearch.info/search.html?id=10976447  claims Neandria was chosen by O. Tekin and A. Erol-Özdizbay based on find spots listed by another cataloger - Ö. Arıkantürk.   A lot of speculation but little consensus.  

I will put it in Uncertain Ionia City for now.