19th-20th century
Diagram and calculations on graphite on the verso.
actual: 35.5 x 25.4 cm (14 x 10 in.)
Bequest of the artist to the Fogg Art Museum, 1936.

Black fiber-tip ink on thin cream wove paper mounted to white cardboard
20th centuryAmericanGouache and collage elements on wallpaper
20th centuryGermanGraphite on paper
20th centuryGermanBlack marker on paper
20th centuryGermanBlack marker and white opaque watercolor on paper
20th centuryGerman
Watercolor and black chalk
20th centuryFrenchLine block print, black ink on off-white wove paper
19th centuryAmericanWatercolor and graphite on off-white wove paper
20th centuryAmericanSketchbook with paper covers
19th-20th centuryAmericanInk on paper
20th centuryGermanInk with green chalk and spatter-painted on paper
20th centuryBritish