Stereoview Photographs
Popular in the late 19th century, stereoscopy is a photographic technique which attempts to enhance the illusion of depth. During the time which stereoviews were most abundantly produced, the prevalent printing technique was the albumen print, so named for its use of egg whites in the paper coating process. These stereoviews, most of which are albumen, are rich in detail and depict historic events in Maine history, such as the great Portland fire of 1866 and images of the sunken wreck of the Battleship U.S.S. Maine in Havana Harbor, 1898.