20th century
13.4 x 8.1 cm (5 1/4 x 3 3/16 in.)
Black ink on white wove paper
20th centuryAmericanBlue crayon and graphite on off-white wove paper
20th centuryAmericanGraphite on paper
20th centuryAmericanBlack ink, charcoal, and watercolor on cream laid paper
20th centuryAmericanGraphite and wax crayon on glossy wove paper
20th centuryAmericanGraphite on translucent wove paper
20th centuryAmericanGraphite on paper
20th centuryAmericanWatercolor over graphite on off-white wove paper, mounted to off-white card
20th centuryAmericanWatercolor on heavy off-white wove paper
19th-20th centuryAmericanGraphite on paper
20th centuryAmericanGraphite on paper
19th-20th centuryAmericanGraphite and printed black ink on cream colored paper (verso: mimeographed Biology 21 worksheet)
20th centuryAmerican