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 h More
Stereograph shows a reading room in the Library of Congress when it was located in the U.S. Capitol building, Washington, D.C. "Entered according to an act of Congress, A.D. 1867 by F.H. Bell, in the District More