[Mama_Bear]

I don't know if he can help with this or not, but I will alert him to these pings.

I believe that it would be a good idea to have the art work photographically copied and restored if necessary, but what can be done to preserve the original images, I don't know.

Maybe JK will have some suggestions.

[Darksheare]

Well, I am aware that there are techniques to remove the acidity of teh apaper, and to stabilize it.
But I am not aware of anything near me that would be useful.
The only places I know that might be able to point in the right direction are museums like the Met, but they're no longer interested in real art these days.