Ships on the River IJ near Amsterdam

Graphite with touches of black chalk on parchment

Transparent and opaque watercolor over graphite on parchment

Brown ink, gray wash, and graphite on cream antique laid paper, framing line in brown ink

Black chalk and brown wash on cream antique laid paper, framing line in black and brown ink

Brown ink, with later additions of brown, gray, and black ink and wash and touches of white opaque white watercolor, on off-white antique laid paper

Brown ink and gray wash, incised, on white antique laid paper, framing line in brown ink

Black ink, gray wash and graphite on cream antique laid paper, framing line in graphite

Brown ink and brown wash on cream antique laid paper

Transparent and opaque watercolor and brown ink over graphite, some glazing in green areas, on cream antique laid paper

Brown ink and brown wash over black chalk on off-white paper

Black chalk on parchment, autograph framing line in black chalk

Black chalk and white opaque watercolor on blue paper, framing line in black ink