7 cm mountain gun

The 7 cm mountain gun was a Japanese ordnance first used in 1883. It was used in the First Sino-Japanese War as the main artillery, and was used again in the Russo-Japanese War by second-line troops.

History
From 1880, the Imperial Japanese Army wanted to produce guns on its own. With Italian help, the army designed new 75 mm guns. Because steel was expensive as a raw material in Japan at the time, bronze was used to produce the gun barrel.