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Pen
1926–1930
Brush
1909–1910
Crayon, violet?
1921–1922
Crayon, brown
1918–1925
1924–1925
Pencil
1910–1911
Pencil, watercolour
1909
1928–1930
Crayon, violet
1916–1920
1929–1930
1916–1918
Crayon, black
1914
1920–1925
1914–1916
Pencil, crayon, black
1916
Charcoal
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