1925. DANMARK. Air mail 25 øre + 4 + 1 øre on 8 AUR BRJEFSPJALD from Iceland cancelled KØBENHAVN LUFTPOST -9.11.25. to Pforzheim, Baden. Danish LUFTPOST vignette and red German cancel Mit Luftpost befördert Luftpostamt Essen. Very unusual use of an Icelandic BREFSPJALD with Danish stamps.