SU-14
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The SU-14 was a prototype Soviet heavy self-propelled gun that started out as an open topped vehicle, with the armor being added later on when it was converted into a direct-fire assault gun in 1941.
Prototype SU-14 during trials in 1934.
SU-14 before the firing test, 1934
SU-14 in the courtyard of the factory No 185, 1934
Prototype of SU-14-1 in trial, 1936
203 mm howitzer M1931 (B-4)
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203 mm howitzer M1931 was a 203 mm Soviet high-power heavy howitzer. During the Second World War, it was under the command of the Stavka's strategic reserve. It was nicknamed "Stalin's sledgehammer" b
SU-14
…being added later on when it was converted into a direct-fire assault gun in 1941. The original prototype, using a modified T-28 chassis, mounted a 203 mm gun B-4 and by 1937 a 150 mm naval gun B-30; the SU-14-1 variant of 1936, using a T-35 chassis, mounted the 203 mm gun B-4 and later the 152 mm gun M1935 (Br-2…
203 mm howitzer M1931 (B-4) in Great Patriotic War museum, Minsk, Belarus.
A battery in use, 3rd Belorussian front, summer 1944
B-4 howitzers depicted in a USSR stamp commemorating the 30th anniversary of the Red Army.