A four-seater Nelson Sling Sofa that David Diao bought from a vintage furniture store around 1990 gave him the material for the work Couch. The Sling Couch, 1963, was designed by John Svezia, Ronald Beckman and Irving Harper working for George Nelson Associates and commissioned by Herman Miller. Yet once an image or icon has been chosen, Diao returns to it again and again. Although this piece of furniture is a little worn and needs complete overhaul, Diao still considers it as one of the most handsome couches ever made. He printed the bare chrome skeleton of the same couch on a single-coloured ground last year, echoing its first version in 1999.