Model for Fourth Bridge 1974-1975 Siah Armajani Model for Fourth Bridge Painted balsa wood, hinges, and handle Closed: 7 1/2 x 38 3/4 x 5 in. (19 x 98.4 x 12.7 cm); opened: 6 1/2 x 52 x 21 3/4 in. (16.5 x 132 x 55.2 cm) Gift of Lannan Foundation