United States. Ordnance Dept. Service handbook of the 3-inch antiaircraft gun mount, model of 1917 / prepared in the Office of the Chief of Ordnance ; July, 1921.

United States. Ordnance Dept.

Service handbook of the 3-inch antiaircraft gun mount, model of 1917 / prepared in the Office of the Chief of Ordnance ; July, 1921.

Washington, D.C. : G.P.O., 1921.

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