Modern and Contemporary Art Concrete Art Kreutz, Heinz 3 works. Untitled (Geometric Compositions). 1970/72. Each a colour silkscreen print on Velin board. Dimensions up to 59 x 59 cm (65.2 x 65.2 cm). Each signed, dated and numbered, or marked ‘Probedruck’ (proof). – One sheet has a barely noticeable stain. Overall, very good condition. Magnificent, colour-rich and velvety prints with narrow margins. Two works, each one of 100 copies. One sheet is a proof outside the edition. Each a colour serigraph on wove cardboard. Each signed, dated and numbered, or inscribed “Probedruck” (proof impression). – One sheet with a barely noticeable spot. Overall in very good condition. Splendid, colour-intensive and velvety prints with narrow margins. – Two of the works are from editions of 100 prints each. One sheet is a proof impression produced outside the regular edition.