Wikipedia Info about manufacturer: "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."
Information about this slide:
- Stereoview - Keystone View Company Manufacturers & Publishers - Copyright Circa 1920
- 19193 - Thousands of Uncle Sam's Sailors
- Used. See condition description.