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Watercolour
1913–1915
Watercolour, pencil
1923–1925
1910–1913
Watercolour, crayon, multicoloured
1942
Crayon, multicoloured, pencil
1921–1922
1932–1933
Charcoal
1910
Brush
a) Brush, b) brush, pen
1896–1898
Pencil
1907–1908
1875–1876
1882
1878–1880
Pen
1879–1880
Watercolour, crayon, multicoloured, charcoal, pencil
Ca 1930
1885
1917
1910–1915
Pen, pencil
1930
Brush (hectographic ink), pencil
1932–1936
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