Dear Mr.Weckbacher,
I am not sure on which kind of treatment can suit you case better. What I can suggest is to ask to a conservator to perform some fixing or varnish application and to guide you to create the best conservation environment for these pictures.
If you need, I can help you finding the best professional for your case!
For what concern the scanning, can be a good idea, but the light used can be harmful for the picture, also the contact. So I suggest to redirect the choice to non-contact scanner, maybe laser like. But first ask a proper conservator in order to not affect more the objects.
I am sorry to not have a best advice, but I am available to bring further the research of the conservation professional.
Best regards, Arianna
Connecting to Collection Care
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Arianna Buffagni
Conservator
Freelance/Private Practice/Self-employed/Independent
Quattro Castella
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Original Message:
Sent: 11-06-2023 15:32
From: Vernon Weckbacher
Subject: Unfixed photos
We have a set of black and white photo proofs probably from the 1930s or 40s that have darkened to the point that some of the images are no longer discernable. Back in the day, photo proofs were commonly sent unfixed, so they would darken over time and be of no use to the customer, the idea being that you would have to buy finished prints if you wanted any. Is there any photo process that can recover the images? If not, I'm supposing the best course would be to scan those that have some image left and use photo software to play with brightness and contrast to get some kind of reasonable image.
Vernon Weckbacher
Archivist/Curator
Mission Historical Museum
956-580-8646