- Digital Commonwealth
- Boston Public Library
- Keystone View Company, Manufacturers and publishers
St. Louis, Mo
Title from item. Number on item: 2. From verso: "The diagrams in No. 2 are slightly dissimilar, being taken at points of view as far apart as the two eyes. By means of the stereoscope, the two images are combined and superimposed so as to appear as one, and the stereoscopic, or solid seeing, effect is produced.
Halftone photomechanical prints
- No known copyright restrictions. No known restrictions on use.