In 1934, Kiichiro Toyoda built a prototype plant along with his Materials Testing Center. At the time, Toyoda had already investigated buying land for a plant in Koromocho (now part of Toyota City), Aichi Prefecture. (The site was later to become the Toyota Motor Corporation Headquarters Plant.) Toyoda wanted to start by gathering together the best machinery available, and thought a simple barracks-like structure would do initially for the prototype plant. Wooden parts (such as pillars, beams and roof trusses) from the time of construction of the old prototype plant were left in Aichi Steel Corp's Kariya Plant. Some of these parts have been transplanted to this exhibit room to reproduce part of the original plant. There is also a body prototype for Toyota's first prototype vehicle, the Model A1.