c. 1951 or later
22.2 × 14.9 cm (8 3/4 × 5 7/8 in.)
Claude Givaudan, Switerland (1980-?); Private Collection, US, sold; through [Jill Newhouse LLC, New York]; to the Harvard Art Museums, 2017.
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 centurySwissWatercolor on white wove paper
20th centurySwissWater-base paint on laid paper mounted on board
20th centurySwissGraphite on cream paper
20th centurySwissGraphite on cream wove paper
20th centurySwissOil pastel on white wove paper
20th centurySwissRed and brown oil and white gouache on cream wove paper
20th centurySwissPastel on paper
20th centurySwissBlack ink and gold paint(?) on tan paper
19th-20th centurySwissOil pastel on white wove paper
20th centurySwissColored pencil, possibly crayon and graphite on off-white laid paper
20th centurySwissPen and ink on paper
20th centurySwiss