mod 65

The Breda 20/65 mod.35 ("Breda 20 mm L/65 model 1935"), also simply known as 20 mm Breda or Breda Model 35, among other variations, was an Italian 20 mm (0.787 in) anti-aircraft gun produced by the Società Italiana Ernesto Breda of Brescia company during the 1930s and early 1940s which saw heavy usage during the Spanish Civil War and World War II, among other period conflicts. It was designed in 1932 and adopted by the Italian armed forces in 1935, becoming one of two major 20 mm caliber anti-aircraft guns used by Italy during World War II, the other being the Scotti-Isotta Fraschini 20/70 (Scotti 20 mm), both firing the common Swiss 20x138mmB "Solothurn Long" cartridge.
The Royal Italian Army formally designated the gun Cannone-Mitragliera da 20/65 (lit. "Cannon-Machinegun 20/65"), with the mount being designated modello 35 (model 1935), or mod.35 for short. Later, a mod.39 (1939) and a mod.40 (1940) system were introduced, featuring the same gun but in new mounts. The "20/65" part of the name refers to the caliber and barrel length of the gun (20 mm L/65).

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