638
1940
Aquarell und Deckfarbe
639
1940
Aquarell und Deckfarben
640
1942
Aquarell und Deckfarbe
537
1949
Watercolour on paper, mounted on cardboard
538
1950
Watercolour on paper, mounted on cardboard
539
1952
Drawing in pen and ink, with watercolors, with a border . . .
540
1955
Drawing in pen and ink, watercolored, mounted on cardboard
541
1956
Watercolour on paper, mounted on cardboard
493
1950
Watercolour and opaque colours