GunsType 91 10 cm howitzer九一式十糎榴弾砲九一式十糎榴弾砲Caliber105 mmService193119321933193419351936193719381939194019411942194319441945Japan · China≈ Jul 1937 – Aug 1945Japan · Pacific≈ Dec 1941 – Aug 1945Artillery 1193119321933193419351936193719381939194019411942194319441945Type 91 10 cm howitzer1,326≈ Sep 1931 – Aug 1945