Design for a room

With the walls cut so they can be raised to form the room. According to notes on the floor, one long wall was to depict Europe, Asia, Africa, and America, and the other long wall the elements Earth, Fire, Air, and again Earth (probably Water). On one short side, three walls can be folded up: one with a statue, one blank, and one with paintings. With notes and a scale indication. Drawing is part of an album.