Administrative History

The Keystone View Company was an American stereographic image and equipment producer in Pennsylvania.

The Keystone View Company was established in 1892 in Meadville, Pennsylvania by B. L. Singley. The company produced stereoviews of educational and comic or sentimental themes. After its incorporation in 1905, the company began selling lantern slides and projection equipment as well. Keystone View Company became the largest stereograph producer, purchasing the negatives of most of its competitors between 1915 and 1921. In 1932 the company opened a new division to produce stereoscopic eye-testing and eye-training equipment. When the company was purchased in 1963 by Mast Development Company, only the eye-testing division was kept in operation. In 1972 the Meadville plant was closed.

Citation:

Nichols, A.S. Manual for the pointer ... 1944

Hundert Jahre Weltsensationen in Pressefotos, 1980: p. 1 (Bildagentur Keystone) p. 348, etc. (Keystone View Company establ. 1891 in Meadville/Pa.; Keystone Agentur)

Lanzmann, J. Paris des année 30, c1987: t.p. (Keystone) jkt. (Agence Keystone)

Wikipedia, Mar. 9, 2012: Keystone View Company (distributor of stereographic images; located in Meadville, Pa.; produced educational and comic/sentimental stereoviews and stereoscopes; educational dept. closed in 1963, eye-training stereographic product division sold to Mast Development Company; Meadville plant closed in 1972; est. 1892 by B. L. Singley; incorporated in 1905, largest stereograph producer; sold stereoviews and lantern slides, as well as projection equipment; purchased negatives of competitors between 1915 and 1921; 1932 formed eye-training equipment department, sold vision testing and vision training materials)

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