825   Ben Nicholson
Fragment of Tuscan Cathedral, 1965
Etching. H 325 W 270 mm.| CHF | 300  / 500  | 
| EUR | 320  / 530  | 
| USD | 370  / 630  | 
 826   Jules Olitski
Untitled, 1970
Colour lithograph. | CHF | 300  / 500  | 
| EUR | 320  / 530  | 
| USD | 370  / 630  | 
 827   Meret Oppenheim
Das Schulheft, 1973
Colour etching with aquatint and embossing on Arches France paper. H 280 mmm W 220 mm.| CHF | 1'200  / 1'600  | 
| EUR | 1'200  / 1'700  | 
| USD | 1'500  / 2'000  | 
 828   Meret Oppenheim
Japanese garden, 1977
Colour lithograph on Canson paper. H 400 mm W 250 mm.| CHF | 500  / 700  | 
| EUR | 530  / 740  | 
| USD | 630  / 880  | 
 829   Nam June Paik
Fluxus Island in Decollage Ocean, 1962
Silkscreen on textile. H 1530 mm W 1520 mm.| CHF | 400  / 600  | 
| EUR | 420  / 640  | 
| USD | 500  / 750  | 
 830   Fritz Pauli
3 sheets: Backstube Prestino, 1947; Proklamation, 1929; Untitled
Each etching and aquatint on paper. H 760 mm W 540 mm (2); H 620 mm W 800 mm (1).| CHF | 300  / 500  | 
| EUR | 320  / 530  | 
| USD | 370  / 630  | 
 831   A.R. Penck
Tiger, 1980
Serigraph on wove paper. H 1300 mm W 2580 mm.| * | CHF | 2'000  / 3'000  | 
| * | EUR | 2'100  / 3'200  | 
| * | USD | 2'500  / 3'700  | 
 832    Mai-Thu Perret
Untitled, 2015
5 colour serigraphs. Each H 460 mm W 340 mm.| CHF | 500  / 700  | 
| EUR | 530  / 740  | 
| USD | 630  / 880  | 
 833   Pablo Picasso
L' abreuvoir, 1905
Etching and drypoint. Sheet: H 170 mm W 230 mm; Plate: H 117 mm  W 183 mm.| CHF | 1'400  / 1'800  | 
| EUR | 1'400  / 1'900  | 
| USD | 1'700  / 2'200  | 
 834   Pablo Picasso
Le Torero blessé, 1956
Lithograph on Arches wove paper. Image: H 355 mm W 470 mm; Sheet: H 505 mm W 660 mm.| CHF | 2'000  / 4'000  | 
| EUR | 2'100  / 4'200  | 
| USD | 2'500  / 5'000  | 
 835   Pablo Picasso
Le vieux roi, 1959
Lithograph. H 670 mm W 510 mm.| CHF | 800  / 1'000  | 
| EUR | 850  / 1'000  | 
| USD | 1'000  / 1'200  | 
 836   Pablo Picasso
Femme assise en tailleur: Geneviève Laporte, 1951
Etching and drypoint on Japanese paper. Sheet: H 310 mm W 234 mm; Plate: H 143 mm W 100 mm.| CHF | 10'000  / 20'000  | 
| EUR | 10'000  / 21'000  | 
| USD | 12'000  / 25'000  | 
 837   Serge Poliakoff
Composition verte, bleue et rouge, 1965
Colour lithographon poster paper. H 540 mm W 700 mm.| CHF | 1'500  / 2'500  | 
| EUR | 1'600  / 2'600  | 
| USD | 1'800  / 3'100  | 
 838   Jackson Pollock
Untitled, 1964
Serigraph on Strathmore Bristol Papier. H 585 mm W 735 mm.| CHF | 4'000  / 6'000  | 
| EUR | 4'200  / 6'400  | 
| USD | 5'000  / 7'500  | 
 839   Hans Purrmann
4 sheets: Haus in Beilstein, 1915; Garten in Levanto II, 1964; Brunnen in Levanto I, 1965; Brunnen und Treppe in Levanto I, 1966
Etching; Lithographs (3). Various formats.| * | CHF | 400  / 600  | 
| * | EUR | 420  / 640  | 
| * | USD | 500  / 750  | 
 840   Markus Raetz
Gnuusch, from "Graphikmappe des Schweizerischen Kunstvereins", 1971
Etching. H 650 mm W 497 mm.| CHF | 300  / 400  | 
| EUR | 320  / 420  | 
| USD | 370  / 500  | 
 841   Markus Raetz
Zucker und Salz, 1969
Silkscreen. H 500 mm W 700 mm.| CHF | 200  / 300  | 
| EUR | 210  / 320  | 
| USD | 250  / 370  | 
 842   Gerhard Richter
Blattecke, 1967
Color offset in gray and ivory on grained semi-cardboard. H 235 mm W 180 mm.| CHF | 2'000  / 3'000  | 
| EUR | 2'100  / 3'200  | 
| USD | 2'500  / 3'700  | 
 843   Gerhard Richter
Funken, from "Graphikmappe des Schweizerischen Kunstvereins", 1970
Color offset print coated with  varnish on chromo cardboard. H 497 mm W 649 mm.| CHF | 2'000  / 4'000  | 
| EUR | 2'100  / 4'200  | 
| USD | 2'500  / 5'000  | 
 844   Bridget Riley
Wave, 1975
Colour serigraph. H 485 mm W 200 mm.| CHF | 2'000  / 3'000  | 
| EUR | 2'100  / 3'200  | 
| USD | 2'500  / 3'700  | 
 845   Mimmo Rotella
Untitled. Venus
Offset print in colors. H 295 mm W 205 mm (Visible measurement).| CHF | 100  / 150  | 
| EUR | 100  / 160  | 
| USD | 120  / 180  | 
 846   Dieter Roth
5 posters
Offset prints. H 1280 mm W 895 mm; H 1000 mm W 700 mm (3); H 940 mm W 660 mm.| CHF | 400  / 600  | 
| EUR | 420  / 640  | 
| USD | 500  / 750  | 
 847   Dieter Roth
Taschenzimmer, 1964
Multiple. Stamped paper and banana slice in plastic box, in cardboard box. H  110 mm W 75 mm D 25 mm.| CHF | 400  / 600  | 
| EUR | 420  / 640  | 
| USD | 500  / 750  | 
 848   Robert Ryman
Seven Aquatints, 1972
Each aquatinte. Each H 610 mm W 610 mm.| CHF | 2'000  / 2'400  | 
| EUR | 2'100  / 2'500  | 
| USD | 2'500  / 3'000  | 
 849   Niki de Saint Phalle
Le Couteau (Rêve d'une jeune fille), 1972
Colour lithograph. H 640 mm W 470 mm (Visible measurement).| CHF | 500  / 700  | 
| EUR | 530  / 740  | 
| USD | 630  / 880  |