1886 | printing ink on paper
1881 | printing ink on paper
1885 | printing ink on paper
August 9, 1873 | graphite on paper
mid-19th century - early 20th century | iron gall ink on paper
1888 | brown printing ink on paper
1879 | printing ink on paper
August 29, 1879 | graphite on paper
1860 | silver and palladium
September 7, 1878 | graphite on paper