Model 420. Round steel and iron lattice, chrome-plated and black fabric. Organically shaped seat shells made of wire mesh on a frame made of thin, curved round bars. Upholstery with manufacturer's marks. Either Harry Bertoia, 1952. H. 78 cm. 54 cm x 48 cm. Seat H. 44 cm. Two Vintage wire side chairs by Harry Bertoia. Manufacturer's mark. Knoll International. 2nd half 20th century.