1st coin is 1798 1 Kreuzer. 2nd coin is 1726 not sure if it is 1 Kreuzer or pfennig or what. There is a green substance on it that can be cleaned off, should I? 3nd coin is 1763 1 Kreuzer its a bit bent. What German states do these coins come from? What would you grade them? How much do you think they are worth? Are these hammered coins?
1 Nurnberg, KM#394 1 Kreuzer 2 Nurnberg, KM#215 1 Kreuzer 3 Bamberg, 1 Kreuzer. I believe it's KM#A131 but Krause has the wrong picture in the current catalog.