This is a small compound monocular with rack-and-pinion focus, rectangular stage with clips, and separate condensing lens in brass frame. It could be hand-held or stood upright. It was collected by Richard Halsted Ward (1837-1917), an American medical microscopist, or his son, Henry B. Ward, a pioneering parasitologist. The “MURRAY & HEATH / LONDON” inscription refers to a firm that began in business in 1856, and that showed various instruments at the International Exhibition in London in 1862.
Currently not on view
Object Name
date made
ca 1870
Murray & Heath
Physical Description
brass (overall material)
steel (overall material)
glass (overall material)
wood (overall material)
average spatial: 19.4 cm x 6.1 cm x 6.2 cm; 7 5/8 in x 2 3/8 in x 2 7/16 in
average spatial: 7.3 cm x 19.2 cm x 9.6 cm; 2 7/8 in x 7 9/16 in x 3 3/4 in
place made
United Kingdom: England, London
ID Number
accession number
catalog number
Science & Scientific Instruments
Science & Mathematics
See more items in
Medicine and Science: Medicine
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Miss Charlotte B. Ward
Additional Media

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