As a public health precaution due to COVID-19, all Smithsonian museums and the National Zoo are temporarily closed. We are not announcing a reopening date at this time and will provide updates on our website and social media.



<< >>
Usage conditions apply
This is a particularly heavy compound binocular with quadruple nosepiece, rectangular mechanical stage, inclination joint, sub-stage condenser, sub-stage mirror, and U-shaped base. The inscription reads “AO / SPENCER.” The 170751 serial number indicates a date of around 1941.
This was owned by Oscar W. Richards (1902-1988), biologist and microscopist.
Currently not on view
Object Name
microscope objective
date made
ca 1941
Spencer Lens Company
place made
United States: New York, Buffalo
ID Number
accession number
catalog number
Credit Line
Gift of Oscar W. Richards, Ph.D
Science & Scientific Instruments
See more items in
Medicine and Science: Medicine
Science & Mathematics
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.

Note: Comment submission on our collection pages is temporarily unavailable. Please check back soon!

If you have a question or require a personal response, please visit our FAQ or contact page.