1881 | printing ink on paper
1887 | printing ink on paper
late-19th century - early 20th century | printing ink on paper
early 20th century - mid-20th century | gelatin silver process on paper
August 6, 1873 | graphite on paper
June 11, 1873 | graphite on paper
mid-19th century - early 20th century | graphite with white gouache on paper
late 19th century | graphite on paper
1882 | brown printing ink on paper
1882 | printing ink on paper
1879 | printing ink on paper
1883 | printing ink on paper
1898 | gelatin silver process
late 19th century - mid-20th century | gelatin silver process
1899 | gelatin silver process, photo paper on board
1893 | gelatin silver process
1883 | graphite on paper
1873 | graphite on paper