Landscape with Doorwerth Castle

Black chalk on off-white antique laid paper prepared with gray wash, partial framing lines in black chalk and graphite

Brown ink on cream antique laid paper, mounted entirely on heavy paper

Brown ink and gray wash with touches of graphite on cream antique laid paper

Black and red chalk counterproof, reworked in red chalk, graphite and black chalk (?) on cream antique laid paper

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

Black chalk with touches of graphite and incidental marks in brown ink(?) on parchment, autograph framing line in black chalk

Watercolor over graphite on cream antique laid paper

Brown ink, brown and gray wash, green transparent watercolor, and touches of white chalk on the sheet of an account book, framing line in black ink and partial framing line in brown ink at bottom

Prussian blue (blue-green) ink and blue-green wash on light tan antique laid paper

Transparent and opaque watercolor over graphite on antique laid paper

Brown ink and red wash, over traces of black chalk, partially incised, on cream antique laid paper; traces of later restoration in white opaque watercolor; verso: black chalk and graphite

Black chalk, gray and brown and green and yellow transparent watercolor on cream antique laid paper, framing line on three sides in gray ink