Ancient MYSIA coin I can't find on Numista [solved]

Hello all! 

I need help to identify this coin:

it's wieght is about 0.6 gramms, and the diameter is 8mm. 

All I know is it is possible a coin from MYSIA and it shows possible a helmet. 

Thank You for your help. 

Vilmos 

A lot of early Boeotian coins have a similar design: https://en.numista.com/catalogue/index.php?e=boeotia_section&r=&st=1-2&cat=y&im1=&im2=&ru=&ie=&ca=3&no=&v=&a=&dg=-600--400&i=&b=&m=1&f=&t=&t2=&w=&mt=&u=&g=&c=&wi=&sw=

Thank You!