Saint Ambrose and Saint Luke

Black chalk, brown wash and white gouache, incised with a stylus, on cream antique laid paper, lower right corner infilled, laid down overall on cream antique laid paper

Brown ink on cream antique laid paper (recto and verso)

Black chalk heightened with white on blue antique laid paper, squared in black chalk

Brown ink and brown wash, heightened with white goauche on blue antique laid paper; verso: black chalk

Brown ink and brown wash over graphite on off-white antique laid paper, squared in graphite

Red chalk over brown ink on brown antique laid paper

Brown ink, gray-brown wash and black chalk on off-white antique laid paper

Brown ink, brown wash, black and red chalk, graphite and white gouache on blue antique laid paper, laid down overall to cream antique laid paper decorative mount

Brown ink on buff antique laid paper, laid down

Brown ink, with some smudges of red chalk on antique laid paper; verso: brown ink

Brown ink and black chalk with traces of white gouache on cream antique laid paper, lined overall with Japanese paper

Brown ink, red wash over red chalk on off-white antique laid paper