100 photographic prints on stereo cards (stereographs, b&w ; 9 x 18 cm. in case 19 x 19 cm) from the Keystone View Company's Stereographic Library Series (Rare Book Call No. D522 .W67). The slides were produced in 1923, but the photographs were taken from 1914-1921.
The stereoscopic views depict World War I scenes with lengthy captions (on back of cards). Included are images of battlefields and trenches, armaments, cavalry, buildings, hospitals and cemeteries, dirigibles, German prisoners, and Treaty of Versailles. Mainly images from France, but also Belgium, Germany, Turkey (Gallopoli), London, training in the U.S., ships at sea, and one view of submarines, battleships, and torpedo boats in San Diego Bay.
World war through the stereoscope [graphic], Special Collections Research Center, Swem Library, College of William and Mary. https://scrcguides.libraries.wm.edu/repositories/2/resources/847 Accessed May 26, 2020.