Two sketches of the gantry. two sketches of a gantry done on the vertical; sketch on the bottom of the page shows a more distant view of the gantry with dark dots representing lights; sketch on the reverse side of two workers done in ink and pencil.
A19761135000 and A19761136000 are on opposite sides of the same sheet of paper. Each object has its object number written in pencil on the opposite side, so the numbers on each side are for the artwork on the other side.