Satin Steel and Black Leather Wave Sofa by Saporiti Satin finished steel and leather sofa by Saporiti, circa early 1980s. This elegant example has a finely detailed steel frame and has been newly upholstered in a supple black leather. Post navigationPrevious post: Stunning Bentwood Chaise by ThonetNext post: Stunning Pair of Occasional Chairs by Arthur Umanoff