semi-automatic improved version was known as "45 mm anti-tank gun M1934" (Russian: 45-мм противотанковая пушка образца 1934 года). These guns were deemed obsolete...

37 mm anti-tank gun model 1930 (1-K) (Russian: 37-мм противотанковая пушка образца 1930 года (1-К)). The gun was produced at the Plant no. 8 (named after...