Co. - , 139th Pennsylvania Infantry. American Civil War 1861-1865.

No. B1173.

Gift; Col. Godwin Ordway; 1948.

The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whites and salt, which creates a glossy surface to hold light-sensitive silver salts. The paper is then sensitized in a solution of silver nitrate, and exposed in a camera or under a negative. After exposure, the print is developed in a solution of gallic acid and silver nitrate, which reduces the silver salts to metallic silver and creates the final image. The albumen print process was widely used for commercial and fine art photography in the 19th century and produced high-quality, detailed images with a distinctive glossy finish.

army pennsylvania infantry regiment 139th history civil war albumen prints group portraits portrait photographs infantry historical photos 1862 19th century history of pennsylvania lot 4190 civil war glass negatives and related prints print pennsylvania infantry ultra high resolution high resolution american civil war united states history cavalry military library of congress

01/01/1862

Library of Congress

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