SS service tunic, or in Daluege's case the German police uniform. There are no photographic records of the insignia ever being worn on the black ceremonial uniform, which had largely fallen into disuse by the time the rank was created. In 1944, Himmler offered to appoint Albert Speer to the honorary rank of Oberst-Gruppenführer. Speer declined, not wishing to formally be subordinate to Himmler. Himmler's successor, Karl Hanke, never held the rank of Oberst-Gruppenführer, but was appointed Reichsführer-SS from the lower grade of Obergruppenführer. Hans-Adolf Prützmann claimed to have been promoted to the rank in April 1945 by personal decree of Adolf Hitler; Prützmann's claim is not supported by either documentary or photographic evidence, leading most history texts to list his final rank as Obergruppenführer. See also Corps colours (Waffen-SS) List SS-Oberst-Gruppenführer Ranks and insignia of the Waffen-SS Notes References Citations Bibliography SS-service records of Kurt Daluege, Paul Hausser, and Sepp Dietrich: National Archives and Records Administration, College Park, Maryland. SS ranks Nazi paramilitary ranks German words and phrases Four-star officers of Nazi Germany Lists of generals