This is a factory John Deere binder that has the original owner's manual for the 675B skid steer, which should also cover the 675. Also inside this binder is the factory parts catalog and the technical manual from John Deere.
There is also a tabbed section in the back of the binder that includes updates that were probably released by John Deere after the original manuals were published.
I have flipped through all of the manuals and they are in really good shape and I'm not finding any greasy handprints or markings on pages.
Let me know if you have questions or need additional pictures