which German 88 mm anti-aircraft and anti-tank artillery  was produced by  Spreewerk
Spreewerk Metallwarenfabrik Spreewerk GmbH was a German weapons manufacturing company. Spreewerk produced a number of important weapons and components before and during World War II including 280,880 of the Walther P.38 pistol which was the standard service pistol of the German "Heer", and the famous 8.8 cm Flak anti-aircraft gun.
MG 15 The MG 15 was a German 7.92 mm machine gun designed specifically as a hand manipulated defensive gun for combat aircraft during the early 1930s. By 1941 it was replaced by other types and found new uses with ground troops.