Chess set, Beech, Josef Hartwig, the Bauhaus, Weimar, Germany, 1924
The King is a cube set diagonally on a cube, to show that it can move straight or diagonally. The Knight moves in a right angle, so it is a cube with opposite corners cut off to make a shape full of right angles.
The Bauhaus School was Germany's most important and avant-garde art and design school. In existence from 1919, many of its teachers found a new home in the USA when the Nazis forced the school to close in 1933. The school taught the integration of art, design and industry. The designers produced objects like chairs, lamps and typefaces that are still copied today.