Nairne Spyglass

The tube of this telescope consists of two threaded wooden (mahogany) sections screwed together that measure 113 cm (closed) or 117.5 cm (fully extended). The achromatic objective lens measures 3.5 cm in diameter (or 3.4 cm clear diameter). The eyepiece consists of four lenses in a brass cylinder (5 separate brass cylinders, screwed together) with a sliding brass cover. The instrument gives gives an erect (terrestrial) image.
The "Nairne, London" signature on the sliding brass lens cover refers to the important instrument maker, Edward Nairne (1726-1806).
Ref: D.J. Warner, "Edwarne Nairne: Scientist and Instrument Maker," Rittenhouse 12 (1998): 65-93.
Currently not on view
Object Name
telescope, refracting
Nairne, Edward
overall: 101 5/16 in x 5 13/32 in; 257.302 cm x 13.716 cm
overall: 40 in x 2 1/4 in; 101.6 cm x 5.715 cm
place made
United Kingdom: England, London
ID Number
accession number
catalog number
Measuring & Mapping
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History, Kenneth E. Behring Center

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