chris10eyck
The stereograph as an educator - Underwood patent extension cabinet in a home library
Animated stereograph in the comments.
1901
Digital ID: (digital file from original item) ppmsca 08781 hdl.loc.gov/loc.pnp/ppmsca.08781
Reproduction Number: LC-DIG-ppmsca-08781 (digital file from original) LC-USZ62-7317 (b&w film copy neg. of right half stereo) LC-USZ6-265 (b&w film copy neg. of left half stereo)
Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA
The stereograph as an educator - Underwood patent extension cabinet in a home library
Animated stereograph in the comments.
1901
Digital ID: (digital file from original item) ppmsca 08781 hdl.loc.gov/loc.pnp/ppmsca.08781
Reproduction Number: LC-DIG-ppmsca-08781 (digital file from original) LC-USZ62-7317 (b&w film copy neg. of right half stereo) LC-USZ6-265 (b&w film copy neg. of left half stereo)
Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA