This manual is intended to prescribe the duties to be performed by the personnel manning antiaircraft machine guns, and to explain the mechanical action of the gun and the workings of related materiel so that antiaircraft machine-gun equipment.
Small arms ammunition : personal equipments of the soldier (comprising infantry, cavalry, artillery, and band equipments : miscellaneous articles for the use of all organizations : 3-inch W.I. saluting gun, mount, equipment, ammunition, etc. and...
"These 1932 regulations prescribe a systematic procedure for the performance of duties in the service of the piece by personnel assigned to howitzer sections of batteries equipped with 155-mm, howitzer materiel, M1917 and M1918."
"This 1944 manual prescribes the knowledge and skill required to serve effectively the multiple gun motor carriages M15 and M15A1. Variations in assigned materiel may necessitate changes in the prescribed drill."