By 1936, Warren McArthur’s furniture business produced nearly six hundred exclusive designs. He incorporated colored anodized aluminum into his furniture, as seen in this Rainbow Back chair. His designs were made from standard tubular parts joined with rings and supported with an internal system of steel rods.

Warren McArthur American, 1885–1961 Rainbow Back chair, 1934–35 anodized aluminum and upholstery 36 1/2 x 18 x 19 in. (92.7 x 45.7 x 48.3 cm) Carnegie Museum of Art