02902cam a2200349 4500 1934477972 TxAuBib 20250218120000.0 250218m18811963||||||||||||||||||||und|u TxAuBib Underwood & Underwood, 1881-1920, production company. Stereoscope Collection. New York, NY : Underwood & Underwood, 1881-1920. Meadville, PA : Keystone View Company, 1892-1963. 407 Stereoscope Cards : Black & White Photographs mounted on cardboard cards ; 17.5 cm x 8 cm. 1 Stereoscopic Viewer : Wood and Metal ; 19.5 cm x 30cm. A stereoscope is a form of 3D image creation and viewing. Two images are printed on each card, one from a 'left eye' view and the other from a 'right eye' view. When seen through a device called a stereoscope, the image appears to be three-dimensional. These were a popular form of entertainment and education during the 19th and 20th centuries. The cards in our collection were manufactured by two of the largest distributors of stereoscopic images. Underwood & Underwood was founded in Kansas in 1881 and moved to New York City soon after. In 1920, they ceased stereoscopic production and sold all their negatives to the Keystone View Company, which was founded in Meadville, Pennsylvania in 1892. Underwood & Underwood continued in the photography industry until the 1940s, and Keystone ceased production in 1963. Most of the cards in our collection are from 1900-1935. Due to the delicate condition of these materials, they are located in Genealogy Storage. Please ask a staff member for assistance in viewing these items. Stereoscope cards are divided into 3 boxes. Box 1: Belgium, Biology, Castles, China, Great Britain, Holland; Box 2: India & Ceylon, Montana, Norway, Panama, President Harding, South America; Box 3: Southern Lands & Antarctica, Southwest Indians, The Philippines, Wild Animals, and 2 Uncategorized Cards. 20250218. Photograph collections. History United States 20th Century. History 19th Century. History 20th Century. History American. History Social History. History Technology. Keystone View Company, 1892-1963, Production company.