Claim: The 7.5 cm L/45 M/32 anti aircraft gun claimed a barrel length of 3.4 meters, and was primarily used for air defense of important cities.
Evidence: The 7.5 cm L/45 M/32 anti-aircraft gun was designed and manufactured in Norway in the 1930s. 7.5 cm L/45 M/32 3.4 m (11 ft 2 in) L/45 Its main use was for positional air defence of important cities and installations.