Ironworkers at work on Tower One of the World Trade Center, 1970

Members of Iron Workers Local 40 remove cable from a load of plank for the metal decking on the 110th floor of Tower One of the World Trade Center during its construction in 1970. An unknown photographer snapped this picture of Jack Doyle, left, Frank Maldonado, and Sandy Walsh, using the camera Doyle carried in his lunchbox.

See this image in the exhibit Landscape of Lost Arts.

Jack Doyle Photo Collection, Iron Workers Local 40, Robert F. Wagner Labor Archives, NYU