The German note is from the WWI era; the "1908" date is a series date and remained fixed throughout the duration of the note issue, which was up to 1920. Would have been quite valuable in terms of face value at the start of the war (equivalent to US$23, or more than an ounce of gold), but as Germany's fortunes waned through the course of the war, then with the crippling postwar reparations, the value of the German mark collapsed. The note would have been worth just US$1 in 1920, 1 US cent in 1923, and a billionth of a cent by the time the note was officially no longer legal tender in 1924.
As a result and due to the very high numbers printed later in the series, these notes are not very high in collector value, especially in this condition. Notes which are known (by serial number, signature etc) to have been issued before the war command a premium, but again, not much extra in this condition.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis