Looking northeast, 1924. (Courtesy Duke Archives) The building at 407-413 North Mangum was built in the late 1910s or early 1920s. The structure was divided into 4 identical storefronts (407, 409, 411, 413), each with a stepped parapet facade. (Shown above with a blue dot) A view of part of the building (413 N. Mangum) looking northwest from East Chapel Hill St., late 1920s.