image: 23 ½ x 18 ½ in. ((59.7 x 47 cm.) sheet: 28 ½ x 20 ¾ in. (72.5 x 52.8 cm.)
來源
The artist’s estate. Fondation Le Corbusier, Paris (no. 2360). Heidi Weber, Zurich, by whom acquired from the above. Bernard Weber, Zurich, by gift from the above. Private collection, Zurich, by whom acquired from the above in the 1980s.