The Three-Inch Gun. Part 2
The 76-mm quick-firing field gun, model 1902, is a Russian light field artillery piece with a caliber of 76.2 mm.
It was actively used in the Russo-Japanese War, World War I, the Russian Civil War, and other armed conflicts involving countries from the former Russian Empire (the Soviet Union, Poland, Finland, etc.). Modernized versions of this gun were used at the beginning of World War II.