Description of the deflection board (model of 1906) with De Carre drift chart for 12-inch mortar
Subtitle: mechanical features, rules governing its care, operation and preservation in service, April 4, 1907, revised December 13, 1907.
Contributors: United States. Army. Ordnance Dept.
Edition: Rev., July 2, 1917.
Publisher: G.P.O.
Published: 1917
Place of publication: Washington [D.C.]
Language: eng
Number of pages: 10
Subjects: United States. Army -- Ordnance and ordnance stores -- Handbooks, manuals, etc.; Range-finding -- Handbooks, manuals, etc.; Fire control (Gunnery) -- Equipment -- Handbooks, manuals, etc.