The only "alteration" noted is soaking off of scrapbook residue. I don't see any change in color due to use of chemicals.
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Net 54-- the discussion board where people resent discussions. 
My avatar is a sketch by my son who is an art school graduate. Some of his sketches and paintings are at
https://www.jamesspaethartwork.com/
Last edited by Peter_Spaeth; 07-06-2019 at 12:39 PM.
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