My grandfather brought these notes back from WWII, What are they worth?
Sadly, 1000 Mark or Franc notes from the 1920s and 1940s have been devalued, and thus your note, which has been folded with edge tears, and stained, has no resale potential. It is, however, an interesting keepsake of your relative’s service in the military, and his European travels.
Often such local notes were signed by the military personal in a squadron or military unit, as a remembrance. These are called short-snorters, and do have a collector interest to them, especially if signed by famous people, visiting dignitaries or USO show cast members.
Allied Military Currency (called AMC by collectors) and Military Payment Certificates (called MPC), have a specialized following, and there are some interesting dates or denominations for those issues. The AMC issues were used in occupied nations after 1943 thru the end of WWII. MPCs were used by US military personel stationed overseas, between 1946 and 1973. This AMC issue is special in that is has a star before the serial number. It is a replacement note, and thus scarcer than most.
If they served in the South Pacific? Then they might have brought back some Japanese Invasion Money (JIM). These have a basic title of The Japanese Government, and are denominated in Pesos for use in the Philippines; shillings and pounds for Oceana;and cents for Malaya and Burma (not for a planed US invasion!)
Value depends on condition. Those that illustrate this article are in very nice condition, and were offered in a Lyn Knight Currency auction sale of early September, 2007. If your note has many folds, or it is dirty, or has been staped, then the value of it is considerably less.