Detail of the Pilasters of the Third Order in the Colosseum

Brown, blue, pink, and yellow washes over red chalk, squared in black chalk on tan antique laid paper, backed with cloth, itself laid down

Brown ink, brown wash and white gouache on gray-brown prepared antique laid paper

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

Brown ink, gray-brown wash and graphite on cream antique laid paper

Metalpoint, brown ink and white gouache on pink prepared antique laid paper, framing lines in brown ink

Black chalk on cream antique laid paper prepared with red chalk wash

Metalpoint (?), black wash, heightened with white, on cream antique laid paper, laid down

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 tan antique laid paper

Brown ink with traces of black chalk on cream antique laid paper; verso: black chalk

Black chalk and white gouache, with later additions of red, brown and ocher chalks, on blue antique laid paper, mounted overall to coarse antique laid card.

Black chalk on blue-brown antique laid paper, lined with off-white wove paper