Value of German money dating back to 1910

Two questions on this subject:

JW writes: Do you know what the value of German money dating back to 1910. It has on the top 1000 then it has Reichsbanknote. and then it has 1000 again. In the center it has some german writing and at the bottom it has a red stamp on the left and the right side. 

and

John M. writes: I also have some old german currency. It is a 1000 Marks. It has a date of 1910. I tried to get a price from a local coin dealer but I think he is trying to rip me off. it has a red stamp on the left side and a red stamp on the right side too. Could you give me a round about price to give me a good idea of the value? Thank you for your time,

The notes you’re talking about were the Imperial Bank Notes of Germany, either Pick 44 (red serial number) or 45 (green serial number). In 1910 1000 Marks was a goodly sum but these were released in large numbers after WWI when they had lost much of their value. Today these notes are very common and are found in junk boxes at shows. The one to look out for are either type with a 6 digit serial numbers, made until 1916. Ones in new or almost new condition will bring between $20-$35. Most are the 7 digit type and were actually made after WWI.