first of all , thank you for you answers Rambo . i'm respecting your willing to help .
the coin has a right size but for THALLER ! it is very strange to fake a rare coin so good and make such a mistakes ... and why the one will wright something that doesn't belong to this coin such as PM ?
were u get an information that other tips of this coin doesn't exist ? i'm not a big pro in German coins , but i know a little about Russian ones . and believe me THERE ARE types that doesnt exist in russian catalogs , do not speak even about Krause...
but most of the chances you are right and it is fake ) , i just want to understand this a little bit strange case ...