Mack, Heinz Lollar 1931 – lives in Mönchengladbach „Lichtrelief“ („Relief de lumiere“) 1969 Aluminiumfolien auf Spiegelfolie, in verspiegeltem Künstlerrahmen 102,5 x 127,5 x 7,5 cm 40 3/8 x 50 1/4 x 3 in. Heinz Mack Lollar 1931 – lives in Mönchengladbach „Lichtrelief“ („Relief de lumiere“) 1969 Aluminium foils on mirror foil, in mirrored artist's frame At the top centre signed and dated (incised): Mack 69. On the reverse signed and dated with orange felt-tip pen: Mack 69. Same place titled with violet felt-tip pen: Relief de lumière. On the reverse a label of Galerie Müller, Stuttgart 102,5 x 127,5 x 7,5 cm 40 3/8 x 50 1/4 x 3 in. Galerie Müller, Stuttgart / M. Thierfelder, Stuttgart / Private collection, Southern Germany