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
1897 | gelatin silver process
1881 | graphite on paper
1867 | graphite and white chalk on paper
1881 | printing ink on paper
1903 | graphite on paper
July 25, 1878 | graphite on paper
1893 | gelatin silver process