@armas, first welcome to CCF. Second, as I suspect that this isn't coin, but perhaps either a token of some sort or even a design carved into a real coin, I'm going to move this thread to an area where we put stuff that we don't know what it is. I'm hopeful that someone there can weigh in with some thoughts.
"If you climb a good tree, you get a push." -----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed." -----King Adz