Adjustable «P40» armchair, Osvaldo Borsani's masterpiece for Tecno, 1955. Multi-position mechanism, steel and foam structure: a milestone of Italian design.
Bibliography
G. Bosoni, Osvaldo Borsani, Skira, Milano 2018, pp. 458-463 · G. Gramigna, Repertorio del design italiano 1950-2000, Allemandi, Torino 2003, vol. 1, p. 40 · Domus 318, May 1956, p. 33.