Those are some fine looking paper building. They seem to be a great solution to get building much faster than building a kit out of plastic or wood. In the 40s and 50s the use of paper brick and roofing was very common. I have two buildings my Dad built from 1/8 in Masonite and covered with brick and roofing paper.
I used the same methods to build my round house and other buildings over 35 years ago. A total card stock building would have been much quicker but the Masonite and brick paper went very quick. Masonite buildings are stronger and mine have been in 5 different house and moves over 35 years.
The Station at top left was made in late 1940s by my Dad. The building in rear and Round House made in 1980s by me. Roofs are rough side up Masonite.
Charlie
