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Box-folder 5:4

 Container

Contains 31 Results:

Askania telescope, equiv. focal length = 120 inches = 10 feet (original drawing),, 6 October 1948

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: 6 October 1948

Askania tracking scope, off-axis parabolic mirror (original drawing),(30.5 cm x 107 cm), ca. 1948

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: ca. 1948

Binocular alterations, tracking telescope #1, general arrangement (WSA-ME-4),(58 cm x 86 cm), 30 June 1947

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: 30 June 1947

Binocular cassegrain for 4.5-inch telescope (original drawing),(30.5 cm x 107 cm), October 1948

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: October 1948

Elliptical diagonal mirror (OPT-1),(3 copies; 28 cm x 43 cm), 25 April 1952

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: 25 April 1952

4-inch Cassegrain telescope for S.C.E.L. optical diagram (original drawing), (45 cm x 61 cm), 13 April 1949

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: 13 April 1949

4-inch Cassegrain telescope for S.C.E.L. proposed mounting,(irregular, approx. 45 cm x 83 cm), 26 April 1949

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: 26 April 1949

Modified Schmidt telescope (f5:43 Wright type), effective focal ratio 3.75,(72.5 cm x 105.5 cm), 14 February 1953

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: 14 February 1953

Modified 6-foot E.F.L. Cassegrain system (ref. no. OM-17),(49.5 cm x 87.5 cm), 5 December 1950

 File — Box-folder: 5:4
Scope and Contents From the Series: Contains drawings of telescope designs and accessory equipment, charts, maps, and miscellaneous prints and posters.
Dates: 5 December 1950