- Circa. 1900s
The albumen process was introduced in France by Louis-Désiré Blanquart-Evrard.
A contact print on paper most often made from a collection negative. The paper
was treated with a solution of albumen (egg white) and salt, then sensitized
with silver nitrate.
The print was made by placing the paper in direct contact
with the negative and
exposing it to the sun.