Akte 440 in the OKH series of files is unusual. The material dates from September and October 1939 and is a mixture of Army documents and many Luftwaffe items including orders for the establishment of units including new Jagstaffeln, and Kampfgruppe Ju 88 (Greifswald, 21 September 1939).
On 19 September, there is an order to establish two Kampfgeschwader staff and 14 Kampgruppen, along with a list of these and document setting out where they are all based.
The first items on the file deal with air attacks (mainly friendly fire) on German troops in the Polish Campaign.
Akte 580 (in Russian) has plans of the Vienna Flak towers.
Akte 441 deals with the air defence of Romania in 1944 including fighter and Flak dispositions as well as bar charts of of Bf 109 G-6 production.
Akte 845 has maps of Aufkl.Gr. Ob.d.L. reconnaissance flights over the Soviet Union in May and June 1944 before Barbarossa.
Akte 270: oblique photos of the Sussex coast taken by 3.(F)/10 on 1 September 1940.
Akte 62 explains all the various organisation symbols used on maps and orders of battle by the army, navy and Luftwaffe (176 pages in all).