The set of four Quinta chairs, designed by renowned Swiss architect Mario Botta for the Italian company Alias ​​in 1985, is an icon of Italian postmodern design. These chairs, which fully embody Botta's geometric and architectural style—influenced by masters such as Le Corbusier, Louis Kahn, and Carlo Scarpa—are more than just furnishings: they are true "architecture for seating," with forms that evoke the spatial volumes of his buildings, such as the San Francisco Museum of Modern Art. Each chair is constructed with a minimalist and robust structure, combining industrial and sculptural elements. The supporting structure is composed of black (or black-painted) steel tubes, arranged to create a curved and asymmetrical frame, with front legs slightly angled outward for greater stability and a sense of dynamism. The seat and backrest are made of micro-perforated and folded steel sheets, giving them a perforated and lightweight appearance despite the solidity of the material. This perforation isn't just aesthetic: it allows the metal to naturally flex, offering unexpected comfort when sitting or leaning, without the need for padding. The typical dimensions of a Quinta chair are approximate: total height around 80-85 cm, width 50-55 cm, and depth 50 cm, making them suitable for homes, offices, or exhibition spaces. 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