The DS3 armchair by Charles Rennie Mackintosh is an example of timeless design from the early 20th century, produced by Atelier International in Italy in the 1970s. The model is made of lacquered ash in black with a paper cord seat The distinctive geometric backrest with vertical and horizontal elements creates a harmonious, rhythmic structure, typical of Mackintosh aesthetics and the Arts and Crafts movement. The armchair has a simple but refined form, which is characterized by symmetry, visual lightness and carpentry precision. The absence of Cassin's signature confirms production by Atelier International, the company that first introduced this model to the market before Cassin's official reissue. This armchair is not only part of design history - it is part of an aesthetic manifesto that connects the past to the future. Ideal for collectors, aesthetes and those who believe that beauty lies in structure.