Thanks for the suggestions! Based on all the info suggested I came to the conclusion that if there were not used such thick coins (in addition to
Thracia which seems to have different motives) that it probably would not then be Greek.
I made some additional
search with all the info suggested and found a
good possible candidate which I didn't thought about but it would make sense that it's from Indo-Greek Kingdom as such
types of coins were used there and with a motive from Greek due to the cultural impact.
I found this one which looks very similar and I think it is a
good candidate. The only thing is that I only found silver ones but maybe bronze ones were made too. I am not 100% sure mine wouldn't be silver but thought anyway not to polish it more so not to wear down the
patina.
Kindom:
BAKTRIA, Indo-Greek
Time: Circa mid 2nd to mid 1st century BC
Obv:
King diademed and draped
bust right
Rev:
Athena Alkidemos advancing left, raising
shield and hurling
thunderbolthttps://www.acsearch.info/search.html?id=1110413I also turned my last photo around for better comparsion with the candidate. Thanks all again!