Father Giambattista Martini Leading the Choir in the Church of Santi Apostoli

Black chalk heightened with white chalk on blue antique laid paper faded to tan (strip added at right)

Brown ink on cream antique laid paper

Black and white chalk, brown wash on cream antique laid paper

Black chalk on cream wove paper

Brown ink over black chalk on off-white antique laid paper

Black chalk on cream antique laid paper

Brown wash, black chalk and white gouache, framing lines in red chalk (?), on cream antique laid paper; verso: black chalk

Black chalk and white gouache on blue antique laid paper faded to gray

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

Brown ink and brown wash on white antique laid paper

Brown ink and brown wash on off-white antique laid paper

Brown ink, brown and pink wash over traces of black chalk on cream antique laid paper