Nelson Bubble Lamp, by George Nelson for Herman Miller, 1952, formed by spraying a polyvinyl chloride (PVC) mixed with a webbing agent (which causes the PVC to form filaments) onto a steel wire frame, and finished with a layer of pure PVC spray coating
Centre Pompidou, France, by Richard Rogers and Renzo Piano, completed in 1977, featuring a tubular steel exoskeleton, cast low alloy steel ‘gerberettes’ (visible 11 ton structure joining the floor trusses to the end columns) and curved polymethyl methacrylate (PMMA), acrylic, glazed walkways.