17th-18th century
12.1 × 17.7 cm (4 3/4 × 6 15/16 in.)
Graphite and white pastel on gray-green wove paper
20th centuryAmericanGraphite on off-white wove paper
19th-20th centuryAmericanWatercolor & white gouache on off-white wove paper, mounted overall to cardboard
19th-20th centuryAmericanGraphite on off-white laid paper
19th centuryDutchPaper
19th-20th centuryGermanBlack, red and white chalk over graphite on buff wove paper
20th centuryCanadianBlack crayon on paper
20th centuryAmericanGraphite on paper
20th centuryGermanParchment covered album with 96 bird studies executed in black ink and watercolor on 83 leaves of off-white antique laid paper (43 x 34.5 cm.). Some drawings have been pasted into the album, others were drawn directly on the album leaves.
18th centuryFrenchGraphite on paper
20th centuryGermanGraphite on off-white wove paper
20th centuryAmericanGraphite on off-white wove paper
19th-20th centuryAmerican