Type 31 75 mm Mountain Gun

The Type 31 75 mm Mountain Gun was introduced in 1898. The Type 31 number was designated for the year the gun was accepted,the  31st year of Emperor Meiji's reign, 1898 in the Gregorian calendar. As the barrel was made of steel, it improved the range and accuracy of the gun when compared to the 7 cm Mountain Gun, which was made of bronze. It was used during the Russo-Japanese War. Approximately 620 were produced.