Match Wrappers, Getting The Wrinkles Out

I have a few match wrappers that have some stubborn wrinkles that I would like to flatten out. Does anyone have any successful experience doing this? I thought of using a spray bottle and possibly steam. These are pretty fragile and also have stamps attached to them.

i would not do anything to straighten them out. the one you show looks unused. the risk that the wrapper will crack along the creases at some point when dry due to the fibers being weakened is very high.

Yes, it is pretty brittle as it is now. I was hoping that some moisture would relax the paper enough to get it flat for mounting. With the paper being so old and thin, I dont want to risk anymore damage to these. Adding moisture may make it even worse to straighten out, or crack later as stated. Never the less, it will not sit flat in the mount and storage is an issue as well. I kind of imagined it would be like working with a wet piece of toilet paper.

You need professional restoration advice and help. Do not moisten with water.

Thanks M and M and Ron for the advice. I could have easily ruined this and other pieces. Looks like this project goes on hold till I find a restoration solution.