A realistic vintage Chesterfield leather sofa with deep-buttoned tufting, rolled armrests, and a luxurious aged patina. The rich brown full-grain leather has natural creases, subtle cracks, and a soft sheen. Brass nailhead trim runs along the edges, and sturdy carved wooden legs add elegance. The seat cushions are plush with visible fabric folds. 4K PBR textures, fully UV-mapped, optimized for VR and architectural renders.