Foster 501 Sofa. is made by Brand Walter Knoll. Details and photos of Foster 501 Sofa. are displayed above. You can also check other products in Furnishings category. Brand Walter Knoll / Furnishings Furnishings products by Brand Walter Knoll Ishino Sofa. Keypiece Communication Desk. 375 Sofa. Jason Lite Cantilever Chair. Foster 502 Armchair. Ishino Récamiere.