Detail of the Pilasters of the Third Order in the Colosseum

Brown ink, brown wash, black and red chalks on off-white antique laid paper; verso: brown ink

Brown ink on cream antique laid paper

Brown ink (brown wash added later?) on off-white antique laid paper

Brown ink, brown and gray wash and black chalk on cream antique laid paper

Black and white chalk on blue antique laid paper, discolored brown, laid down overall to antique laid decorative mount

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

Brown ink and brown-gold ink wash, over black chalk on off-white antique laid paper, center of frame cut out and laid down overall to cream modern laid paper

Brown ink and wash over black chalk on cream antique laid paper with incised ruled lines

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

Red chalk with traces of graphite on off-white antique laid paper; verso: graphite

Oil paint on antique laid paper, varnished

Brown ink with touches of black chalk on cream antique laid paper, laid down overall to cream wove paper