I 20

KURT SCHWITTERS (1887-1948) I 20 signed, dated and inscribed 'K. SCHWITTERS I 20' (on the artist's window mount) paper collage and pencil laid down on card, laid down on the artist's window mount image: 4 x 3 1⁄8 in. (10.2 x 8.1 cm.) artist's mount: 8 5⁄8 x 5 7⁄8 in. (22 x 14.8 cm.) Executed in 1920