An enduring icon of avant-garde furniture design, the ds-600 sectional sofa by ueli berger for de sede, switzerland (1972), stands as one of the most versatile and recognizable modular seating systems in modern design history. This 7-segment version, upholstered in rich, patinated tan leather, retains all the charm, comfort, and adaptability that have made the ds-600 a cult favorite among designers and collectors alike. Each module consists of a beech wood frame with foam cushioning, covered in high-quality leather that has developed a warm, inviting patina over time. The segments are joined together using a hidden zipper and canvas strap system, allowing for fluid, snake-like curves or straight-line configurations. Whether styled for a sculptural statement or a functional seating solution, the ds-600 adapts seamlessly. The inviting tan leather contrasts handsomely with the dark suede base, enhancing the piece's rhythmic, organic form. measuring 325 cm in total length, 100 cm in depth, 75 cm in height, and with a seat height of 39 cm, this configuration provides generous seating while maintaining a visually balanced footprint suitable for a range of interior layouts. Renowned for both its engineering and luxurious feel, the ds-600 was designed to redefine flexibility in lounge seating. It holds a place in the permanent collections of several major museums and remains a cornerstone of de sede's design legacy. This 7-piece variant is ideal for those seeking the iconic appeal of the full system in a more space-conscious format — perfect for city apartments, studios, or intimate lounge settings. A rare opportunity to own a vintage swiss modern masterpiece that brings both sculptural beauty and unparalleled comfort to any environment. 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