A Red and White Striped Tulip (Proncker)

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

Brown ink on off-white antique laid paper, framing lines in brown ink

Graphite on parchment, autograph framing line in graphite

Brown ink on light tan antique laid paper

Graphite on off-white antique laid paper, mounted

Brown ink and brown, red, and green washes over black chalk on cream antique laid paper

Brown ink, brown wash, black chalk, and later touches of white chalk on light tan antique laid paper prepared with light tan wash, partial framing line in black chalk at upper edge

Transparent watercolor and brown ink on off-white antique laid paper, mounted overall

Brown ink and brown wash over graphite on cream 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

Brown ink and brown wash with (later?) gray wash on off-white antique laid paper

Opaque and transparent watercolor on off-white antique laid paper, partial framing line in black ink