Black and white drawing of a machine with a ladder

Molecular model of a peptide molecule on a white background

Black and white frame with a floral design

Black and white photo of a man with a mustache

Close up view of a beige tiled floor with a white background

Black and white drawing of a building with trees in the foreground

Map of the city of Chicago

White background with the signature of John Durang in the center

Painting of a man with a beard and a hat on his head