The ledger papers with the accounting and writing on them are from 1880's ledger books. I think the Long Island Express ledger book is from the early 1900's. The newpaper clippings are from some 1917 newspapers I found at a thrift store. The Sears, Roebuck catalog is a 1930's and was in pretty rough shape but perfect for me as I love the "aged" look and feel of the old books and catalogs.
The following are some pictures of the books, newspapers and catalogs I worked from. I did not take a picture of the 1880's ledger books again as I already posted them on my blog sometime ago.
The following pictures are pages from the above books that are glued on the manila folders. Some have already been trimmed and some aren't trimmed yet. Once they are thoroughly dried and pressed for a few days, I trim some of them up so they are ready for future projects and leave some as they are as they make great pages for my Remains of the Day journals. Once the fragile papers are glued onto other substrate, they are sturdy enough to fold, etc.
This is time consuming but very addictive and worthwhile if you like having the real thing in your projects. I will be doing a future post as to what I used some of these papers for.