[Electrical Products building with the frame of the Trylon in the background, New York World's Fair site.]
[Construction of the New York World's Fair site, with the frames of the Trylon and Perisphere in the background.]
[New York World's Fair site under construction, with the frames of the Trylon and Perisphere in the background.]
[New York World's Fair site under construction, with the steel frame of the Trylon in the background.]
[New York World's Fair site under construction, showing the Electrical Products building and the frame of the Trylon.]
[Construction of the New York World's Fair site, with the Trylon and Perisphere in the background.]
[Construction of building at the New York World's Fair site.]
[Construction of the New York World's Fair site, with the steel frames of the Trylon and Perisphere in the background.]
[Construction of the New York World's Fair site. Production and Distribution building, with the frames of the Trylon and Perisphere in the background.]
[Construction of the New York World's Fair site.]
[Construction at the New York World's Fair site, showing Perisphere, Helicline and Trylon.]
[Construction of the New York World's Fair site, with the frame of the Trylon in the background.]
[Construction of the New York World's Fair site, with the steel frames of the Trylon and Perisphere visible in the background.]
[Ranger at New York World's Fair site during construction, with the frames of the Trylon and Perisphere in the background.]