1868 | printing ink on paper
1880 | printing ink on paper
1886 | printing ink on paper
1882 | printing ink on paper
graphite on paper
1946 | colored pencil and graphite on paper
late 19th century | graphite on paper
April 3, 1910 | graphite on tissue
mid-19th century - early 20th century | ink on paper
1886 | brown printing ink on paper
1879 | printing ink on paper
1904 | graphite on paper
May 12, 1907 | graphite on paper