Collodion Print Restoration

[doughowk]

Trying to restore an Albumen print from around 1900. It has irregular shape spots [see attached] throughout the print . I'm wondering is there a safe cleaner that would remove the spots without damaging the print?

 

[Prof_Pixel]

I think the short answer is: don't mess with the stains (which are probably known as foxing).

Check out http://albumen.conservation-us.org/library/monographs/reilly/chap11.html for some background information.

 

[Photo Engineer]

Contact Mark Osterman at GEH.

PE

 

[doughowk]

After going thru Reilly's book and a book by Stulik and Kaplan on Collodion prints (see https://www.getty.edu/conservation/publications_resources/pdf_publications/pdf/atlas_collodion.pdf ), and narrowing timeline to between 1905-10, am guessing that the print is on matt-collodion paper. I changed the title accordingly.