September 7, 1878 | graphite on paper
1878 - 1880 | graphite on paper
1906 | purple colored pencil on paper
September 1906 | purple colored pencil on paper
September 8, 1906 | purple colored pencil on paper
September 11, 1906 | purple colored pencil on paper
September 1906 | purple colored pencil and graphite on paper
September 12, 1906 | purple colored pencil and graphite on paper
July 20, 1878 | black lithographic colored pencil on paper
1878 | graphite on paper
July 20, 1878 | graphite on paper
July 30, 1878 | black lithographic colored pencil on paper
September 7, 1878 | graphite and wash on paper