Looking up at a first-floor ceiling corner at the Hoffmann-Hayman factory, where a rough board-formed reinforced-concrete beam meets its column and the slab above — the horizontal grain of the 1930s formwork boards is pressed into the beam's vertical face, a galvanized water line runs along the beam at left, and steel electrical conduit is strung along the beam soffit; exposed aggregate is visible where a shoulder of concrete has spalled away at the beam's top edge
