Talking mainly about old black-and white pictures that I do not own the negatives for, or old letters that already have fragile and yellowing paper. Nor sure this is the right subreddit, but I'm sure some of you must deal with old documents?
You can try /r/Archivists, or me, for I am here as well.
How old are the documents?
How many are there? (Roughly)
How much money are you willing to spend?