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SIPublic domain
Patent Office
Unidentified Artist
- Date
- after 1870
- Type
- Photograph
- Medium
- Stereoscopic albumen silver print
- Department
- NPG
- Institution
- National Portrait Gallery
- Object number
- npg_NPG.POB38
- Credit
- National Portrait Gallery, Smithsonian Institution; transfer from the Smithsonian American Art Museum/National Portrait Gallery Library