Serienscheine from Noerenberg (Lm.952) are a very interesting area for notgeld collectors as they show so many of these variants. The issuers of these notgeld knew that the collectors had an insatiable appetite for differences within the notes. Colour, paper, printer's name and serial numbers are the most common differences collectors should be aware of. Most of the pieces depict scenes from a story about a huge crayfish which is chained to a post by the side of the lake (The Enzigsee). The town of Noerenberg is now known as Insko, Poland.
The scan below shows such differences. Some pieces have over-printing stamps across them, some pieces are on different coloured paper, some have serial numbers on the obverse, reverse or none at all (format may include 'ser' '*' 'No.' etc and in different font size/colour)and some have different coloured coats of arms (wappen). The note in the bottom left hand corner has a blue crest and is extremely scarce. I have over 100 serienscheine variants from Noerenberg!
The Paderborn set - the note that shows the donkey 'shitting': (Based on a magical donkey in a fairytale by the Brother's Grimm) 'An ass that shits ducats, we Paderborners don't have such a thing. But there are enough asses in the world that buy our paper money' - It is ridiculing the whole issuing of worthless notgeld itself.)