- This is a brass telescope with a pillar-and-tripod stand, an achromatic objective of 3.5 inches aperture, three eyepieces, a finder, two telescoping braces, and handles for movement in altitude and azimuth. The tube is 39.5 inches long. The “TROUGHTON LONDON” inscription on the faceplate is that of Edward Troughton, a noted optical and mathematical instrument maker who began working on his own in 1805. Troughton took a partner in 1824 and began trading as Troughton & Simms.
- The telescope fits into a mahogany case with brass hardware. The attached shipping labels refer to Dr. W. H. Fishburn, Dr. Henry Van Bergen, and J. C. Leeds. John C. Leeds, Jr. and Mary E. Leeds donated it to the Smithsonian.
- Ref: A. W. Skempton and Joyce Brown, “John and Edward Troughton, Mathematical Instrument Makers,” Notes and Records of the Royal Society of London 26 (1971): 233-262.
- Anita McConnell, “Edward Troughton,” in Oxford Dictionary of National Biography.
- Anita McConnell, Instrument Makers to the World. A History of Cooke, Troughton & Simms (York, 1992).
- Currently not on view
- Object Name
- date made
- 1805 - 1824
- Troughton, Edward
- place made
- United Kingdom: England, London
- overall in case: 6 in x 46 1/2 in x 11 in; 15.24 cm x 118.11 cm x 27.94 cm
- ID Number
- catalog number
- accession number
- Credit Line
- John C. Leeds, Jr. and Mary E. Leeds
- Data Source
- National Museum of American History
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