Telescope (Spyglass)
name: label: maker
content: Nairne, Edward
notes: label: Description
content: 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.
label: Description
content: The "Nairne, London" inscription on the sliding brass lens cover refers to the important instrument maker, Edward Nairne (1726-1806).
label: Description
content: Ref: D.J. Warner, "Edwarne Nairne: Scientist and Instrument Maker," <i>Rittenhouse</i> 12 (1998): 65-93.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Military
label: See more items in
content: Navigation
label: See more items in
content: Measuring & Mapping
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.325412
label: accession number
content: 256202
label: catalog number
content: 325412
objectType: label: Object Name
content: telescope (spyglass)
physicalDescription: label: Measurements
content: overall: 101 5/16 in x 5 13/32 in; 257.302 cm x 13.716 cm