Cassegrain Reflecting Telescope

This telescope was probably made in the 18th century and used by an amateur astronomer. It has a metal primary mirror of 4 inches aperture, a brass tube covered with fish skin, an alt-azimuth mount, and a pillar-and-claw stand that could rest on a table top.
Currently not on view
Object Name
telescope, reflector
date made
ca 1700-1800
Physical Description
brass (overall material)
ID Number
catalog number
accession number
Science & Mathematics
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History, Kenneth E. Behring Center

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