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This was made by Robert Stanton Avery, Jr., a mathematician who spent a long career computing tide tables for the U.S. Coast Survey, and who gave the Smithsonian Institution a substantial sum of money to be used for the “extension of the sciences.”
We know that Avery made several telescopes in the early 1850s, while working on the family farm in Connecticut. This example has a brass barrel 24½ inches long that measures 4¾ inches diameter at the large end and 1½ inches at the small end. The lenses are lacking.
Ref: “Robert Stanton Avery, Jr.,” in Bulletin of the Philosophical Society of Washington 12 (1895): 435-442.
Currently not on view
Object Name
date made
19th century
overall: 24 1/4 in x 5 in; 61.595 cm x 12.7 cm
ID Number
catalog number
accession number
Credit Line
Robert Stanton Avery
See more items in
Medicine and Science: Physical Sciences
Science & Mathematics
Data Source
National Museum of American History
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