Broadcast Sheet Repair and Storage

I would not apply glue or tape to it as it could damage it even more. Maybe try a library and find out what they do to preserve old documents. I lightly steam mine with a screen about a foot over a stove with boiling water to soften the paper and press them in a couple heavy books for a day or so to get them flat as possible. I photo scan them to document and display then I put them in large zip-loc bags squeezing out as much air as I can and store them away from light to preserve them.

I found this with some interesting information on preserving old doc's

http://homepages.rootsweb.ancestry.com/~george/preserving_photos.html