Spectroscope

Description
This is a brass direct-vision spectroscope with a five-prism assembly. The center section of the tube is covered with brown leather. The “J. G. Hofmann / Rue de Buci, 3, Paris.” inscription refers to a German instrument maker who specialized in instruments of this sort.
A note in the box reads: “This Spectroscope belongs to my friend L. M. Rutherfurd Esq. who lent it to me when he was about to go abroad in 1872. To be returned to Mr. R_ T. P. . . .” Lewis M. Rutherfurd was an American lawyer who made early and important contributions to astrophysics. He showed several items at the Universal Exposition held in Paris in 1867, and may have met Hofmann at that time.
Ref. D.J. Warner, “Direct Vision Spectroscopes,” Rittenhouse7 (1993): 40-48.
Location
Currently not on view
date made
late 1860s
maker
Hofmann, Jean Georges
place made
France: Île-de-France, Paris
Measurements
box: 12 1/2 in; 31.75 cm
ID Number
1979.1180.01
catalog number
1979.1180.01
accession number
1979.1180
Credit Line
Richard O'Neill
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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