This set of four FK6725 Tulip Chairs, designed by Preben Fabricius & Jørgen Kastholm for Kill International in the 1960s, is an iconic representation of mid-century modern design. Introduced in 1964, this groundbreaking swivel armchair won the prestigious Federal Prize for Good Form, cementing its place as a revolutionary piece of furniture design. Featuring a sleek tulip-shaped black shell, these chairs exude sophistication and timeless appeal. The original black leather upholstery offers both elegance and comfort, while the five-foot polished aluminum base provides stability and allows for 360-degree rotation, enhancing both function and style. This seamless combination of materials and form reflects the duo’s commitment to high-quality craftsmanship and functional aesthetics. This set remains in excellent original vintage condition, preserving its authentic character and high-quality materials. The leather is well-maintained, and the structure remains solid, making these chairs not just a design statement but also a highly functional seating solution. 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