50 1/8 in. x 30 1/8 in. (127.32 cm x 76.52 cm)
Acquired 3760
Collection SFMOMA
The United States General Services Administration, formerly Federal Works Agency, Works Projects Administration, allocated to the San Francisco Museum of Modern Art
3760.43

Source: http://www.sfmoma.org/explore/collection/artwork/285#ixzz2X6OC4u00
San Francisco Museum of Modern Art