Long description

Three black and white photographs. One shows the construction of a large, rectangular, metal box, which is rounded on its roof. The floor, ceiling and some wall supports are visible. Five men are standing inside it. A second photograph is taken from within the box and shows that the metallic walls have been added. Two men and several cables and wire are shown. The third photograph shows the completed metal box. It has the appearance of a metal caravan, with a door on the side and a window. Two men are standing at the door.