I really love our old house!!! Just for fun we tried to look underneath the wallpaper in the bottom area of the walls in our living room. There seemed to be some kind of bulge and we wanted to know what it is. At first, my husband got stock with his finger in the wall, I love this picture :)
Well, the bulge is a - probably very old - wooden plinth:
And sticking to it are eight - yes, 8 - layers of wallpaper. One of them is definitely a 60ies wallpaper...
Layers 1-3, woodchip wallpapers
Layer 6 - 60-ies forever ;):
And on the clay-wall there seems to be some kind of painting in a still very bright blue. I'm really eager to see that one day:
The preservationist told us that blue colour used to be too expensive, so his guess is that they used little blue cubes (probably with indigo) that where dissolved in water. The walls were then painted with this watery solution. He too is eager to see that wall ;)