Identification
The resources below present some useful guidelines for the identification of albumen prints.
Messier, Paul
Identification of Major 19th C. Photographic Print Processes
. 1998
Reilly, James M.
The Albumen & Salted Paper Book: The history and practice of photographic printing, 1840-1895
. 1980
Appendix C. Guidelines for the Identification of Albumen and Salted Paper Prints