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Antique Keystone Telebinocular Stereoscope 3d Vintage Viewer W/ Light And Cards For Sale
Hello all, This listing is for the Keystone "Telebinocular" viewer (patent 1703787, application dated December 20, 1927). Keystone View Company of Meadville, Pa., was the world's largest producer of stereographs and was in business from 1892 to 1970 on a limited basis. The company was founded by Benneville L. Singley who at one time worked for Underwood. This particular viewer has an electric light attachment and comes with 6 Keystone 3D viewing cards. The cards are part of the Keystone Eye Comfort and Depth-Perception Series and were designed with the purpose of developing comfortable vision and a high degree of depth perception for the user. This is a beautiful example of American medical history and not only does it still function as originally intended it also would serve as a great design piece/lamp to compliment anyones home. Thank you for looking and please check out our other listing!
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Antique Keystone Telebinocular Stereoscope 3d Vintage Viewer W/ Light And Cards: $595