Notice for Sunday, January 16: Due to inclement weather, the National Museum of American History will close at 2 p.m..



<< >>
The “Wm. Grunow / New York” inscription on this spectrometer is that of William Grunow (1830-1917), a German craftsman who arrived in the United States in 1849. In 1873, now living in New York, Grunow announced his willingness “to execute all orders for philosophical instruments.” Grunow moved to West Point in 1881, and became custodian of the astronomical observatory at the U.S. Military Academy.
Ref: D.J. Warner, “Julius & William Grunow,” Rittenhouse 3 (1989): 41-48.
Currently not on view
Object Name
Grunow, William
place made
United States: New York, New York City
overall: 4 3/4 in x 19 1/4 in x 11 3/4 in; 12.065 cm x 48.895 cm x 29.845 cm
ID Number
catalog number
accession number
Credit Line
United States Military Academy
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object