A customer wants to do something with this old newspaper but wants it to last another 100 years. Any great ideas other than make a copy, frame the copy and have the original placed in a sealed metal container.
Newsprint is inherently short-lived; it's engineered to have low cost, to print well, and last about a week.
Older newsprint is better. Until around 1900 newsprint was decent paper. As technology improved, paper makers were able to reduce quality and cost, without losing the desirable characteristics. Pre-1940 newsprint is still good, by today's standards.
I suggest having a conservator look at the paper. If it is in good enough condition, a conservator may be able to de-acidify the paper by soaking it with a water-borne solution of some alkaline buffer.
Wei'To liquid and Archival Mist spray are de-acidifiers readily available to framers. However, I suggest *not* using any such products on a one-of-a-kind item...What if something goes wrong? Leave it to an experienced conservator who knows what to do.
Having said that, you *can* give the old original newspaper extended life by mounting it between two sheets of DuPont Mylar-D archival, high-clarity polyester film, held together by 3M #415 archival polyester tape. Do NOT use acetate or any other substitute film, and do not allow the tape to contact the newspaper. If you need details on how to make a Mylar-D mount, you're welcomne to contact me directly.
James Miller,PPFA-CPF; PPFA Certification Board Member; FACTS/GAFP Committee Member