Model, painted wood and cardboard
6 3/4 × 29 × 18 1/4 in. (17.1 × 73.7 × 46.4 cm)

Section, ink on paper
13 7/8 × 21 7/8 in. (35.2 × 55.6 cm)
 

Pages from Sketchbook #52, ink on gridded paper
10 3/8 × 8 in. (26.4 × 20.3 cm), each page

Sketch on verso of letter, 1954, ink on paper
8 1/2 × 11 in. (21.6 × 27.9 cm)