Saint Ambrose and Saint Luke

Red chalk on tan paper, laid down

Brown ink, incised, on cream antique laid paper inlaid into incised off-white antique laid album page; verso: brown ink, incised

Black chalk on blue antique laid paper

Black chalk on gray-blue antique laid paper

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

Black and white chalk, incised with stylus, with some retouching, on cream antique laid paper, laid down overall on cream antique laid paper

Brown-gray ink, gray wash, white gouache over black chalk on blue antique laid paper, laid down overall to off-white antique laid paper

Brown ink and brown wash on cream antique laid paper prepared with gray wash

Brown ink, gray ink, brown wash and traces of black chalk, main figure lightly incised, on cream antique laid paper with infill at bottom edge, edge of infill covered in white gouache

Brown ink on cream antique laid paper mounted overall to cream antique laid paper

Red chalk on off-white antique laid paper

Brown ink, gray and brown wash, and white gouache over black chalk on antique laid paper, laid down overall to cream antique laid paper