I did a www.google.com search for old photographs and found these that might tell us something. But do a google search typing in Restoring old photographs and many urls come up. I had a tintype of my grandparents wedding and I had never seen my grandpa at just a photography shop and it was scatched but they said they could for MONEY restore it. I don't think I have any that has mold on them though. http://www.wrightstudio.com/restoration.html http://www.kawartha.net/~jleonard/care.htm Thelma