The "Irma" chair by Achille Castiglioni produced by Zanotta is composed of an elegant structure in black steel tube, which makes it more resistant than the previous one, with seat and back in nylon covered with leather. The chairs fully represent the style of refinement and simplicity that distinguish this great Italian designer, showing themselves to be contemporary and versatile at the same time. In the proposed pair we find the iconic Zanotta furniture brand combined with a vintage label that describes the model. 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