Salted paper print from glass negative

Salted paper print from glass negative

http://www.metmuseum.org/toah/works-of-art/1993.233

Gioacchino Rossini, 1856

Nadar (Gaspard-Félix Tournachon) (French, 1820–1910)
Salted paper print from glass negative

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The salt print was the dominant paper-based photographic process for producing positive prints during the period from 1839 through approximately 1860.The salted paper print was the first type of paper print used in photography, and remained the most popular paper print until the introduction of the albumen print process in the 1850s. Salt prints could be made from both paper and glass negatives. Paper negatives produced a grainy and slightly mottled image. Glass negatives produced a sharp, crisp image. Salt prints have white highlights. http://en.wikipedia.org/wiki/Salt_print