Medium: original lithograph. Printed on watermarked wove paper in 1920 for Das Graphische Jahrbuch, published in Darmstadt, Germany. Sheet size: 8 1/4 x 6 1/4 inches (210 x 162 mm). Signed in the stone (not by hand). Walter Ruttmann (1887-1941) is perhaps best known as an avant-garde film director.