In November 1930, in Indiana, United States, one of the great feats of modern engineering was executed: a team of architects and engineers moved an 11,000-ton (22-million pound) telephone exchange without ever suspending its operations either basic supplies for the 600 employees who worked inside.
In order to comprehend this milestone, we have to go back to 1888, when the architecture firm Vonnegut, Bohn & Mueller (later known as Vonnegut & Bohn) was founded in Indianapolis by German-American architects Bernard Vonnegut and Arthur Bohn.
In 1907, Vonnegut, Bohn & Mueller designed the Indiana Bell Building in Evansville, a 7-story building for the Central Union Telephone Company; an Art-Deco building later included in 1982 in the National Register of Historic Places of the United States for being part of the historical identity of Indianapolis as part of the German-American architectural legacy of the city.
