Field Glasses


Brass instrument with a worn black japan finish. The objective lenses are 5 cm (2 inch) diameter, and the optics are very good. The “H. SANDERS MONTREAL” inscription on both eye cups refers to Henry Sanders, a late 19th century dealer of optical and scientific instruments.

The “U.S. NAVY / R 11462” mark on one barrel means that this instrument was used during World War I. So too does the accompanying certificate signed by F.D. Roosevelt, Assistant Secretary of the Navy, acknowledging John W. Cooper’s loan of these glasses to the Navy at that time.

Location: Currently not on view

Subject: World War I


See more items in: Medicine and Science: Physical Sciences, Science & Mathematics, Optics


Exhibition Location:

Credit Line: Jeannette L. Marshall, Rosabell Cooper Leistra, and Dorothy M. Hennessy

Data Source: National Museum of American History

Id Number: 1980.0130.01Catalog Number: 1980.0130.01Accession Number: 1980.0130

Object Name: field glasses

Measurements: overall: 2 9/16 in x 5 in x 7 7/16 in; 6.50875 cm x 12.7 cm x 18.89125 cm


Record Id: nmah_1456670

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