1886 | graphite on paper
1885 | printing ink on paper
1882 | printing ink on paper
1879 | printing ink on paper
late 19th century - mid-20th century | gelatin silver process
1892 | gelatin silver process
1904 | gelatin silver process
1903 | gelatin silver process
early 20th century - mid-20th century | gelatin silver process on paper
1881 | graphite on paper
mid-19th century - early 20th century | graphite in paper
1909 | graphite on paper
1887 | printing ink on paper
1881 | brown printing ink on paper
1890 | printing ink on paper