A few more notes for discussion:
I bought the coin on ebay as Brandenburg-Preußen.
However, https://www.ma-shops.de/olding2/item.php?id=337189 is the best match, I could find so far from Brandenburg coin references available online.
While there is some resemblance between my and this coin, it still doesn't look to be sufficient for conclusive identification.
The ebay seller is normally not too accurate with his description and identification of his coins. So, I can't take his word for granted.
Meanwhile, I totally agree with tdziemia's assessment that the letters on the coin are European and it looks like it was produced somewhat in 14-15 century. In my observation, it is indeed could be from Eastern Germany but also could be originated further to the east in Pomerania and even Poland or some Baltic area.
I bought the coin on ebay as Brandenburg-Preußen.
However, https://www.ma-shops.de/olding2/item.php?id=337189 is the best match, I could find so far from Brandenburg coin references available online.
While there is some resemblance between my and this coin, it still doesn't look to be sufficient for conclusive identification.
The ebay seller is normally not too accurate with his description and identification of his coins. So, I can't take his word for granted.
Meanwhile, I totally agree with tdziemia's assessment that the letters on the coin are European and it looks like it was produced somewhat in 14-15 century. In my observation, it is indeed could be from Eastern Germany but also could be originated further to the east in Pomerania and even Poland or some Baltic area.
























