1893 | gelatin silver process
1894 | gelatin silver process
September 1893 | gelatin silver process
1917 | gelatin silver process
mid-19th century - mid-20th century | gelatin silver process
1903 | gelatin silver process
1858 | gelatin silver process
late 19th century | graphite on tracing paper
mid-19th century - early 20th century | graphite on paper
August 1878 | graphite on paper
1884 | printing ink on paper
1887 | printing ink on paper
1886 | printing ink on paper
1880 | printing ink on paper
1881 | printing ink on paper
late-19th century - early 20th century | printing ink on paper
late 19th century - mid-20th century | gelatin silver process
July 12, 1873 | graphite and ink on paper
1882 | graphite on paper