Oil on canvas, signed 'P. Kelpe' lower right. 14 x 11 in., 22 x 19 in. (frame).Note: German-born painter Paul Kelpe was an early proponent of abstract painting in 1930's Chicago, where he was employed as a WPA muralist. His Bauhaus-inspired arrangements of geometric shapes representing buildings, wheels and machinery was his way of incorporating representational imagery into essentially abstract designs.