The 152 mm gun-howitzer M1955, also known as the D-20, is a manually loaded, towed 152 mm gun-howitzer artillery piece, manufactured in the Soviet Union during the 1950s. It was first observed by the
The 122mm D-74 towed gun is a Soviet field gun. Developed in the late 1940s, it served with the Soviet Army and was widely exported. A number were produced under license in the People's Republic of Ch
122mm D-74 in Vietnam Military History Museum, Vietnam
D-74 122mm field guns in use with PAVN during the Vietnam War