491. Ordnance provision system. Ordnance catalogue (ordnance provision system): [Group C] Gun and carriage, 75 mm., M1897M1 (French), Changes 1; Nov. 11, 1929. Bookmark Corporate/Agency Authors: Ordnance Department and War Department Publisher: Ordnance Department Date: [1929.] SuDoc number: W 34.23:C-4/2/ch.1 rev.