Brown (with a touch of green) 3-seat sofa by Kho Liang Ie for Artifort. Model C684 in perfect condition. SOLD With its modest simplicity, the C684 sofa is a timeless classic. It was designed in 1968 by the Indonesian-Dutch designer Kho Liang Ie and is still part of the Artifort collection. The perfectly angled padded seat and backrest makes the C684 ideal for use as a comfortable sofa on which to relax. The horizontal cushion gives the sofa a sleek appearance. Besides this version, Liang Ie also designed a version with horizontal cushion strokes under the name C683. Both sofas are available as 2,5-seater and 3-seater with a powder-coated or polished stainless steel base.