Spectroscope

Description
This is a small and simple direct vision spectroscope. The inscription on the case reads “WILLIAM J. HAMMER, CONSULTING ELECTRICAL ENGINEER, 26 CORTLANDT, NEW YORK.” William J. Hammer (1858-1934) worked with Thomas Edison at Menlo Park and had wide interests in electrical science and technology. By 1890 Hammer was an established consulting engineer in New York City. It is unknown how and when the spectroscope ended up in Hammer’s collection. He may have purchased it for use or it may have been given to him for evaluation.
Ref: Robert S. Harding, “Register of the William J. Hammer Collection, c. 1874-1935, 1955-1957,” 1986.
United Press Syndicate, “William J. Hammer: Consulting Electrical Engineer,” no. 1038, ca 1910.
Location
Currently not on view
Measurements
case: 4 in; 10.16 cm
ID Number
PH*320566
catalog number
320566
accession number
241402
Credit Line
International Business Machines Corporation
subject
Science & Scientific Instruments
See more items in
Medicine and Science: Physical Sciences
Science & Mathematics
Optics
Data Source
National Museum of American History, Kenneth E. Behring Center

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