1952
21.5 x 34.2 cm (8 7/16 x 13 7/16 in.)
[Arteba Galerie, Zurich, Switzerland], sold; to Fogg Art Museum, 1984.
Invisible physical energy on white wove paper. [The actual drawing is a blank sheet of wove paper placed into a handmade glassine envelope which is itself placed into a handmade white wove paper envelope which is then placed into a handmade brown card folder. There is also another handmade glassine envelope which contains a white printed card. The text on the latter reads: "A Couple of Wet Rocks/(invisible drawing/energy)"]
20th centurySwissWhite ink on gray wove paper
20th centurySwissGraphite on paper mounted to board
20th centurySwissOil pastel on white wove paper
20th centurySwissPastel on paper
20th centurySwissGray ink on laid paper mounted on board
20th centurySwissGraphite on off-white paper
19th-20th centurySwissBallpoint pen (and pen and ink?) on printed material
20th centurySwissBlack ink, watercolor, and gouache on cream paper
19th-20th centurySwissWatercolor on white wove paper
20th centurySwissWatercolor on white wove paper
20th centurySwissInk on paper
20th centurySwiss