I have a couple of important things i am making that need to stick paper to paper. I need it to last 70 years and not show through or ruin the original normal paper. What glue is best? For info they are my autograph book and my dc's books of newspaper cuttings and some photos and pictures from school. All being stuck onto ok-quality journal book type paper. I want the glue to stick well but to last. What should I use, that is easily available?
Thanks!