Series 6 Italian design chairs from the 80s

Unique series, commissioned by a Milanese architect in the 80s. 6 vintage chairs. Fiberglass structure still very solid. Stainless steel base. No breakage, but traces of wear consistent with their age. Seat height 43/44 cm. Cassina Piretti Colombo Cinna Martinelli Aulenti Kartell Knoll Bertoia Starck Vitra Perriand Panthera Flexform Fontana Poulsen Cesca Artemide, B&B, Cattelan, Rinaldi, Saporiti, Boffi, Stoppino, Faleschini, Gavina, Alivar, Rizzo, Zevi, Magis, Calligaris, Zanotta Vintage