Paul Klee, Tannenwald, 1914, Aquarell auf Velinpapier (Aquarellpapier), auf Velinkarton kaschiert, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/128567

Paul Klee, Hannah, 1910, Ink on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34019

Paul Klee, Garden of Passion (Garten der Leidenschaft), 1913, etching in black on ivory wove paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/8111

Paul Klee, With the Flag (Mit der Fahne), 1918, Ink on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35629

Paul Klee, The Hanged Ones (Die Gehängten), 1913, Ink on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38148

Paul Klee, Small World (Kleinwelt), 1914, etching on zinc, National Gallery of Art, Washington. https://dartabase.art/cite/nga/8110

Paul Klee, Das Haus zur Distelblüte, 1919, Öl auf Karton, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/4067

Paul Klee, Hope and Destruction (Zerstörung und Hoffnung), 1916, lithograph with watercolor, National Gallery of Art, Washington. https://dartabase.art/cite/nga/8113

Paul Klee, Houses Drawn by Oxen, Ox Speared by a Lantern, Overpass (Häuser von Ochsen gezogen, Ochse laternengespiesst, Strassenüberführung), 1916, Ink on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33836

Paul Klee, With the Red X (Mit dem roten X), 1914, Watercolor on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34945

Paul Klee, Demon above the Ships (Dämon über den Schiffen), 1916, Watercolor and ink on paper with ink border on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34207

Paul Klee, Portrait Scizze ‚Tante u. Neffe‘, 1915, Pinsel in Grau auf Vergépapier, auf Velinkarton kaschiert, Städel Museum, Frankfurt am Main. https://dartabase.art/cite/staedel/125947

Paul Klee, Laughing Gothic (Lachende Gotik), 1915, Watercolor and pastel on paper with metallic paper border on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33827

Paul Klee, Snail (Schnecke), 1914, Ink on paper on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34935

Paul Klee, Blick auf einen Fluss (View on a River), 1912, lithograph, National Gallery of Art, Washington. https://dartabase.art/cite/nga/8112