Adhesive for very old newspaper I have just found a moon map published in the UK newspaper The Daily Mail from 1969, which I saved because of the first moon landing and an abiding interest in astronomy. However, it's been folded up for the past 50 years, and was published in two parts, which I sellotaped together at the time. Obviously it's now in pretty poor shape, but I want to preserve what's left as best I can (it's still readable!) I've bought acid-free conservation paper as a backing, and a very large acid free conservation 'plastic' envelope to hold it, but I want to stick the two parts together, on the backing, to show the whole map. Can anyone recommend the best adhesive or method for doing this, please?
I'd be tempted to have it laminated (it would take a big roll laminator; schools, libraries, or print shops may have them and the cost would be nominal).  As long as the paper is exposed to air and humidity, it will continue to deteriorate.  It will eventually become brittle.  Laminating it will keep it together in its current condition and allow you to handle it and examine it up close without worrying about it starting to fall apart.  It may be possible to laminate the sections into one continuous piece, or the sections could be laminated separately and mounted next to each other.  After lamination, you can mount them for display, and will have a lot of flexibility in the type of adhesive.