The 7.5 cm KwK 37 L/24 (7.5 cm Kampfwagenkanone 37 L/24) was a short-barreled, howitzer-like German 75 mm tank gun used during World War II, primarily as the main armament of the early Panzer IV tank. Slightly modified as StuK 37, it was also mounted in early StuG III assault guns.
Panzer IV with 7.5cm KwK 37 L/24
The Panzerkampfwagen IV, commonly known as the Panzer IV, is a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161.
A Panzer IV Ausf. G "413" in desert colours, bearing the palm tree insignia of the Afrika Korps, «Friederike» inscribed in Fraktur script on the gun barrel near the mantlet
Panzer IV Ausf. A in 1939
Panzer IV Ausf. C, 1943
Panzer IV Ausf. D in 1940. In addition to armour upgrades, the bow machine gun was re-introduced.