Slaughter Pen : Gettysburg. - Public domain dedication image
Summary
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.
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Tags
united states
history
civil war 1861 1865
battlefields
pennsylvania
gettysburg
manuscripts and archives division
united states sanitary commission records
slaughter pen
high resolution
united states sanitary commission creator
gardner alexander 1821 1882 photographer
archival materials
albumen prints
slaughter
pen
condensed historical matter
correspondence
19th century
history of pennsylvania
new york public library
Date
1861 - 1871
Contributors
United States Sanitary Commission, Creator
Gardner, Alexander (1821-1882), Photographer
Source
New York Public Library
Link
Copyright info
Creative Commons CC0 1.0 Universal Public Domain Dedication ("CCO 1.0 Dedication")