A PAIR OF KNOLL 'BARCELONA' LEATHER AND CHROMIUM-PLATED METAL CHAIRS, designed by Ludwig Mies Van der Rohe, circa 1929, the X-shaped chromium-plated steel frame supporting two black leather square cushions for the back rest and seat, with firm's label--30 in. (76 cm.) high, 30 in. (76 cm.) wide, 30 in. (76 cm.) deep (2)