Photographic Plate Holder

Photographic Plate Holder

Usage conditions apply
Double-slide photographic plate holder made by George Willis Richey between 1930 and 1935, for use with the 40-inch aperture Ritchey-Chretien aplanatic reflector at the U.S. Naval Observatory, and later moved to Flagstaff, Arizona.
Ref: Deborah J. Mills, "George Willis Ritchey and the Development of Celestial Photography," American Scientist 54 (1966): 66-94.
Currently not on view
Object Name
Photographic Plate Holder
overall: 7 7/8 in x 19 3/4 in x 19 1/4 in; 20.0025 cm x 50.165 cm x 48.895 cm
ID Number
accession number
catalog number
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