Description of the Barr and Stroud 9-foot horizontal base self-contained range finder, type F.Q. 2 with instructions for its use, care and preservation.
Washington [D.C.] : G.P.O., 1917.
> Ordnance and ordnance stores
> Handbooks, manuals, etc.
Optical range finders > Handbooks, manuals, etc.
Range-finding > Handbooks, manuals, etc.
Fire control (Gunnery) > Optical equipment > Handbooks, manuals, etc.
At head of title: No. 1905.
Seal of the Ordnance Dept. on t.p.
"May 18, 1911."
19 p.,  folded leaves of plates :
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