D-IGOL was assigned to the DLV [Deutscher Luftsportverband, i.e., German Air Sports Association] and, accordingly, subsequently to the NSFK [Nationalsozialistisches Fliegerkorps, i.e., National Socialist Flyers Corps].
The two buildings in the background make it possible to identify Stuttgart-Böblingen airfield (Klemm's headquarters) as the location where this photo was taken: the structure on the right is the older Werft hangar, the building to the left is the newer Flugzeughalle hangar, completed in 1929. Exact date currently unknown. (German Aviation 1919-1945 collection)
