'The Keystone Eye Comfort and Depth-Perception Series' Stereoscopic Cards
 Catalogue Number: 4366 'The Keystone Eye Comfort and Depth-Perception Series' Stereoscopic Cards Category: Equipment Sub-Category: Stereo cards (clinical) Corporation: Keystone View Company Year Of Publication/Manufacture: c. 1920s Time Period: 1900 to 1939 Place Of Publication/Manufacture: Meadville, Penn., USA Publisher/Manufacturer: Keystone View Company Description Of Item: Set of 12 thick unboxed black cardboard cards, 178 mm x 88 mm, with sepia-coloured pairs of photographs of various scenes. BO 1 printed in green on top right hand corner of cards with EC 1-12 in the centre of the cards. KEYSTONE STEREOSCOPIC SERVICE with logo printed on left side with COPYRIGHT UNDERWOOD & UNDERWOOD INC. on cards 1-4, COPYRIGHT KEYSTONE VIEW CO. on cards 5-9 and 11-12, and COPYRIGHT H.C. WHITE CO. on card 10. 'For the Development of Comfortable Vision and a High Degree of Depth Perception' on back along with information about each card.See also Cat. #s 4368, 4669 Historical Significance: The Keystone View Company was a major distributor of stereoscopic images from 1892 to 1963. By 1905 it was the world's largest stereographic company. It was started by B.L. Singley, a salesman for Underwood and Underwood, a photograph company founded by two brothers in Kansas which moved to New York City in 1891. Condition: Good condition with some minor scratching Location: Documents Room Red Daytona Cabinet Drawer 2 |