Vintage p40 adjustable armchair realized by osvaldo borsani for tecno, 1956. First edition of this iconic armchair, in excellent condition. Today the p40, in its first edition produced until the 1960s, is exhibited at the moma in new york and san francisco, at the center pompidou in paris, at the victoria and albert museum in london and, of course, at the milan triennale. Ref. - domus 318 (may 1956), p. 33 - domus 401 (april 1963), p. D/123 - ottagono 30 (september 1973), p. 200 - centrokappa, italian design in the 1950s, ricerche design editrice, milan, 1985, p. 68 - irene de guttry, maria paola maino, italian furniture of the 40s and 50s, laterza, bari, 1992, p. 114 - giuliana gramigna, fulvio irace, osvaldo borsani, leonardo-de luca ed., rome, 1992, pp. 252-261 - giampiero bosoni, francesca picchi, marco strina, nicola zanardi, patents of italian design 1946-1965, electa, milan, 2000, p.66 - giuliana gramigna, repertorio 1950-2000, allemandi, turin, 2003, p. 40. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution