Keystone View Company
The
Keystone View Company was a major distributor of stereographic images, and was located in
Meadville, Pennsylvania. From 1892 through 1963 Keystone produced and distributed both educational and comic/sentimental
stereoviews, and
stereoscopes. By 1905 it was the world's largest
stereographic company. In 1963 Department A (stereoviews sold to individual families) and the Education Departments were closed down, but Keystone continued to manufacture eye-training stereographic products as a subsidiary of Mast Development Company. In 1972 Mast closed the Meadville manufacturing site.
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