Hello John,
A friend of mine has a very important land grant document from the late 1700s that he wanted preserved. He had a local frame dealer send it to a company that mounted it into a "shadow box" type frame and it is sealed inside the glass with an inert gas to prevent any further deterioration. The only thing has to do is keep it out of sunlight and a reasonable temperature. This cost him about $300 15 years ago.
Ed Tinker may have the best solution at a lower cost than the sealed system with inert gas. I have about 10 Capture Papers and use the system Ron Wood uses with the sheet protectors. I keep them in my vault with controlled temp & humidity, laying flat. Good Luck and take care!
Marvin
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