The Alky Italian armchair, designed by Giancarlo Piretti and produced by Castelli in the 1970s, is an iconic piece of Italian design. Its internal structure is made of steel covered with high-density thermoformed polyurethane foam, maintaining its shape and comfort. It has become a collector's item. It has been reupholstered in a purple fabric. 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