Model Plia Folding Chair by Giancarlo Piretti for Castelli / Anonima Castelli, 1970s, in Very Good condition. Designed from 1960 to 1969 This piece has an attribution mark. This iconic Plia folding chair was designed by Giancarlo Piretti and produced by Castelli in the 1970s. The chair features a chrome-plated metal frame and a transparent yellow acrylic glass seat and backrest, which creates a unique visual effect that almost makes the chair appear to be floating in space. The Plia chair is not only aesthetically pleasing but also functional, as it can be easily folded for compact storage when not in use. This chair has become a design classic and is now highly sought after by collectors and design enthusiasts. Signed in the frame, as shown in photos. Each chair remains in good vintage condition, with only minor signs of wear consistent with age and use.