They must have liked this image a lot, there are 4 variations, 2 by color black or brown printing and the other 2 are a different picture on the reverse.
http://germannotgeld.com/Paderborn%20Stadt%20Set%201.html
http://germannotgeld.com/Paderborn%20Stadt%20Set%202.html
http://germannotgeld.com/Paderborn%20Stadt%20Set%203.html
http://germannotgeld.com/Paderborn%20Stadt%20Set%204.html