Skeleton of a Gorilla, for &quot;Art Anatomy&quot;

Skeleton; Three Male Heads; verso: Profile Head; Perspective Exercise

Washington Allston, c. 1801-1803

Graphite on off-white laid paper; verso: graphite and brown ink

Male Nude with Right Arm Raised

Denman Waldo Ross, 19th-20th century

Graphite on off-white wove paper mounted to tan cardboard

Figures, after Tintoretto and Veronese

John Singer Sargent, 1871

Graphite on darkened off-white wove paper

Partial View of a Standing Male Nude

John Singer Sargent, c. 1890 - 1915

Charcoal on off-white laid paper

Joseph Lindon Smith, 19th-20th century

Bridge at Night

Watercolor and gouache on cream wove paper

Caricature of Two Black Figures Dancing

John Singer Sargent, 19th-20th century

Graphite on off-white wove paper

Partial Sketch of Man's Head; verso: Sketch after Javanese Sculpture

John Singer Sargent, c. 1884 - 1889

Graphite on off-white wove paper

Study of a Prehistoric Mammoth or Mastodon

Denman Waldo Ross, 19th-20th century

Black ink over graphite on thin tracing paper mounted to off-white cardboard

Denman Waldo Ross, 19th-20th century

Seated Male Nude

Graphite on off-white wove paper

Archivolt Figures, León Cathedral, Spain"

John Singer Sargent, 19th-20th century

Graphite on off-white wove paper

John Singer Sargent, 19th-20th century

Part of a Sketchbook

Two signatures, without covers

Partial Western Mountain Landscape (recto and verso)

Sanford Robinson Gifford, 1864

Graphite on darkened off-white wove paper