18
1912
Pencil on yellowish
19
1913
Watercolour over pencil on
20
1914
Pencil and watercolour on
21
1914
Carpenter's pencil on
22
1917
Opaque colours, watercolour
594
1927
Lithograph on wove paper
595
1914 (before 11 July)
Drypoint on laid paper
596
Before 8 May 1914, printed in 1922
Drypoint on strong, yellowish