Harry Bertoia for Knoll "420C" Wire Side Chair, with gray upholstery and chrome-plated steel supports, "Knoll Inc" label to underside. 29.5" H x 21" W x 17" D; seat: 18.25" H. Provenance: From an East End Avenue Collection. Keywords: Modern Furniture, Seating, MCM, Mid-Century Modern, Designer, Italian/American designer, Minimalism, Minimalist, Industrial, Interior design, Decorative Arts