The Detroit-based architectural firm Field, Hinchman & Smith designed the Piquette Avenue Plant. It is an example of late Victorian-style architecture and was modeled after New England textile mills. Designing factories based on this type of mill was common practice in the United States at the time. The building is three stories high, wide, and long. Its load-bearing exterior brick walls contain 355 windows, and its maple floors, supported by square oak beams and posts, cover . The Piquette Avenue Plant contains two elevator-stairwell combinations, one located on its northwest corner and the other located on its southwest side. Recalling a fire in March 1901 that destroyed the Olds Motor Works factory in Detroit, Henry Ford and the architects included a fire sprinkler system in the building's design, a rare feature for industrial buildings of the period. This and several other original safety features in the factory, such as its firewalls, fire doors, and fire escapes, are still present. Water for the sprinkler system was supplied by a wooden water tank located on the building's roof. A brick powerhouse, measuring wide by long, was the original electricity provider for the factory, and was located near its northwest corner. The water tank and powerhouse no longer exist. From October 1904 to the end of 1909, Ford Motor Company assembled car models B, C, F, K, N, R, S, and T at the Piquette Avenue Plant. Ford models B and C were the first car models produced at the factory starting in late 1904, and production of the Ford Model F began the following February. The vast majority of factory tasks were done by men, except for magneto assembly, which was done by women. Hand tools were used for the assembly work at fixed stations, and the completed components would be brought by hand to the chassis for final assembly. Completed cars were shipped to the company's distributors and dealers by rail using a spur line behind the building, which connected to a Michigan Central Railroad main line. Due to variations in demand and car model changeover, the number of employees varied constantly, ranging from as low as 300 to as high as 700. The company did not recognize labor unions at the factory. Ford Motor Company was a member of the Employers’ Association of Detroit, an organization that prevented most of the city's factories from unionizing until the 1930s. In 1905,