Of interest is the change of the company's name to Messerschmitt A.G. in the header, and the airscrew type used - VDM 9-11081A. This points to manual propellor pitch control, without automatic pitch control option being present as VDM documentation shows the following propellor types used for the Bf 109E :
Bf 109E ohne Automatik : 9-11081A (DB601A and N)
Bf 109E mit Automatik : 9-11081E (DB601A and N)
The first known documentation of automatic propellor pitch (Luftschauben Verstellautomatik) control appears in late 1939, in the L.Dv. 556/3 (Entwurf) BF 109 E Flugzeughandbuch, promulageted 16 December, 1939, Berlin. The Handbook takes numerous notes on the operation of the Luftschauben Verstellautomatik in various conditions, and also notes that some aircraft are without this automatic system; this latter is confirmed by oral accounts of Bf 109E pilots.