Can you count the layers? I saved a bit of each paper so I can compare with some wallpapers of different eras. I only know that the top layer was put up in 1979 or early 1980 by the man who did a quick remodel of the house for resale. The other 4 or 5 layers might have been put up every 10-15 years or so. The bottom left patch is the bare plaster wall. It looks like no paint was ever used. Now I hear wallpaper is making a big comeback, but I'm on to paint, paint, paint!