1884 | printing ink on silk fabric
1881 | printing ink on paper (14.81a-f, i-k), brown printing ink on paper (14.81g-h)
late 19th century - mid-20th century | pencil on paper
1881 | printing ink on paper
1884 | printing ink on paper
1881 | brown printing ink on paper
1903 | graphite on paper
1888 | graphite on paper
1884 | brown printing ink on paper
late-19th century - early 20th century | graphite on paper