Vintage Lionel Train Manual 40 Pages. This was in an estate lot purchased that consisted of mostly paper items from the 1930s to 1970s. That doesn't mean it is from that era, however it looks pretty old. I cannot find a year on it.
This manual shows considerable wear and tear. The front and back cover is missing. There are tears, rips, discolorations..etc.. The 40 pages are intact. See photos for assessment.