Ordnance provision system. Ordnance catalogue (ordnance provision system): Group F, Setter, fuze, hand, M1913 (155-mm. gun), M1913A1 (155-mm. howitzer), M1913A2 (4.7″ gun), and M1913A3 (105-mm. howitzer, M2), parts and equipment; Sept. 3, 1930.