A Red and White Striped Tulip (Proncker)

Black chalk on parchment

Brown ink and transparent and opaque watercolor over graphite on antique laid paper, framing line in brown ink

Graphite and black chalk, partially incised, on white antique laid paper, framing line in graphite

Red chalk on antique laid paper

Brown ink, brown wash and white opaque watercolor on cream antique laid paper, framing lines in brown ink and graphite at right, some ruled, and in black chalk at bottom

Brown ink over black chalk and touches of graphite on cream antique laid paper

Black chalk, brown ink, and gray and brown wash on off-white antique laid paper, framing line in black ink and in black chalk

Black chalk with incidental offset of red chalk on cream antique laid paper

Graphite on parchment, autograph framing line in graphite

Black chalk and gray wash on antique laid paper

Brown ink and transparent and opaque watercolor on antique laid paper, framing line in brown ink

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