1980s
21 x 29.2 cm (8 1/4 x 11 1/2 in.)
Pen and ink on paper
20th centurySwissPen and ink on paper
20th centurySwissGraphite on mat board
20th centurySwissInk on paper
20th centurySwissBlack crayon on cream wove paper
20th centurySwissInvisible 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 centurySwissGraphite and acrylic on cream wove paper
20th centurySwissWatercolor on paper
20th centurySwissOil pastel on cream wove paper
20th centurySwissGray ink on laid paper mounted on board
20th centurySwissWatercolor on white wove paper
20th centurySwissGraphite on mat board
20th centurySwiss