over 180 million valves, at a cost of less than half what it would be in the larger Highland Park plant. In 1936, Ford replaced the mill with an Albert Kahn-designed factory building. The building reflects the then-current industrial architecture, as well as hints of Art Deco in the brickwork and entryway styling but still incorporated a water wheel. With the new building, as many as 400 people were employed at the Northville plant. The factory continued to produce valves after the Village Industries program was discontinued in 1947. The building was enlarged in 1956, and in 1969 over 150,000 valves were produced every day. The plant continued operations until 1981, the longest lived of any former Village Industries factory. It reopened in 1982 to manufacture shipping racks and gas tanks, but operations were discontinued for good in 1989. The building was later sold. The building has been renovated into office space for use by design firms. The land surrounding the building is a town park, in part containing "Mill Race Village," an outdoor museum of restored buildings. The valve plant was listed on the National Register of Historic Places in 1995. Nankin Mills site The Nankin Mills site is located at 33175 Ann Arbor Trail in Westland, Michigan. The first mill on this site was constructed in 1835-42; that mill burned some time during the Civil War. The second mill was constructed in 1863 by Samuel Hardenbergh. In 1887, Hardenbergh sold the mill to Martin Lewis, and at a later date was purchased by Floyd Bassett. The mill was eventually purchased by Henry Ford in 1918 from Bassett. Ford converted the building into a small factory, and in 1920, twelve workers began producing screws for Ford. It was the second Village Industry to open, after the Ford Valve Plant in Northville. In 1927, Ford converted the site to make engravings and stencils, and in 1937 a new building was constructed at the site. Eventually it employed 70 people. The plant closed in 1948, after which Ford donated the site to the Wayne County Road Commission. The commission remodeled the mill, and in 1956 it was opened as a nature center. It was designated a Michigan State Historic Site in 1967; in the mid-1980s, Nankin Mills became the headquarters of the Wayne County Park System. An addition was built in 1999, and in 2001 the original mill reopened as an