Unknown Coin [help Please]

Fulda is a city in Hessen, Germany. Before Germany existed as we know it, individual cities would mint their own coinage. The word 'Stadt' means city in German. The 'Marke' is referring to the standard with which the coin was based. It probably has some roman numerals and the words "Eine Feine Marck". That dictates how many of that coin are required to make one Fine Mark (234g or 8 oz of silver). perhaps it was spelled "Marke" at the time that coin was made. The fact that those letters are on the coin means it's bigger than 1 pfennig/1 kreuzer and smaller than 1/2 Thaler.

Your description and pictures don't clearly match up with anything in my "Standard Catalog of German Coins". Some clear photos would definitely help a ton.