Group Portrait of the Regents of the Oude Zijds Huis-Zitten Huis

Black and white chalk on blue paper

Brown ink, gray and brown wash over black and red chalk on off-white antique laid paper, incised, framing line in brown ink, mounted on a gilt and hand-colored mount of blue paper

Black chalk and gray wash on cream antique laid paper, framing lines in brown ink and partial framing line in black chalk, laid down on mount

Opaque and transparent watercolor with touches of black chalk on off-white antique laid paper

Gouache, watercolor, and black chalk on cream antique laid paper

Brown ink, brown wash, and graphite on cream antique laid paper, laid down on mount

Black and red chalk on cream antique laid paper

Black chalk on parchment

Black chalk and gray and red wash on cream antique laid paper

Black and white chalk, charcoal, and gray wash on blue antique laid paper, autograph framing line in charcoal; verso: test strokes in white chalk

Black ink and gray wash over red chalk on cream antique laid paper, squared in red chalk, framing line in black ink and red chalk, mounted at all corners

Graphite and gray wash on white prepared parchment