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Inner tube of Barr and Stroud 2-metre base rangefinder

1920

Centre separating prism for Barr and Stroud rangefinder

1920

Parallax-bar stereometer PB2

Type F.P.4 rangefinder with tripod adaptor

1960

FT3 rangefinder, by Barr and Stroud

1908

Large photogrammetric plotting machine by Barr and Stroud, c. 1928

Large photogrammetric plotting machine by Barr and Stroud

1928

Tilt finder by Barr and Stroud, for use with plotter 1932-464 and Thompson plotter 1930-248, c. 1927

Tilt finder by Barr and Stroud

1927

Barr and Stroud range-finder, 4ft 6ins base, used aboard ship on Antarctic Expeditions, 1902-1904 and 1910-1913

Optical range-finder, British, 1902-1904

1900