Item 2018.09.02.112 - Correct-eye-scope stereoscope set (Keystone)

Title and statement of responsibility area

Title proper

Correct-eye-scope stereoscope set (Keystone)

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  • Object
  • Graphic material

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Dates of creation area


  • [ca. 1940] (Manufacturing)
    Keystone View Company

Physical description area

Physical description

1 piece of photographic viewing equipment : stereoscope ; 2 photographic images ; 2 booklets of illustrated stereoscopes ; 28 x 8 x 33 cm

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Item is a green wood and plastic Correct-Eye-Scope used for vision testing and vision therapy. Item comes with a green wooden base and metal plates designed to hold Correct-Eye-Graphs or stereoscopic like drawings manufactured by Keystone Viewing Company to improve or test vision. A correct-Eye-Graph template would be placed in the sliding card holder, next the user would view the template through the stereoscope and attempt to trace the image displayed. This item comes with two booklets; one booklet designed for the left eye and one booklet designed for the right eye. Booklets are marked as such. Booklets also contain user instructions. The stereoscope is made from a wooden base with metal hooded eye holder similar to the design of a Homles stereoscope.

Notes area

Physical condition

Good condition

Immediate source of acquisition

Collected by the late Dr. Martin J. Bass and Gail Silverman Bass and donated to the Ryerson University Library and Archives by Gail Bass in 2018.


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  • English

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Open. Records are available for consultation without restriction.

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