PM Sent.
I think it boils down to are you trying to preserve it while displaying it? or preserve it and have it stored?
I just want to preserve my two Bitcoin-themed newspapers from El Salvador. I don't mind about not being able to display them as long as they're well-protected from UV light, dust, etc.
It seems that no one makes acrylic cases for newspapers so my best option would be an archive box. I wonder how durable are such boxes?