Paul Klee "Die Sonne streift die Ebene",

Paul Klee, polyphonies modernes.

Paul Klee - "Die Sonne streift die Ebene", ( Le soleil effleure la plaine), aquarelle et crayon/ papier/carton, Berne, Zentrum .

Straight Lines in Four Directions and All their Possible Combinations (Set of 15+1) Sol LeWitt, ‘[no title]’ 1973

Sol LeWitt - Straight Lines In Four Directions And All Their Possible Combinations (Set of

Josef Albers

Josef Albers, Transformation B, 1950 Engraving from machine-engraved brass plate. JAAF: x cm x inches) The Josef and Anni Albers Foundation / Artists Rights Society (ARS), New York