Designer: børge mogensen manufacturer: fritz hansen model: spoke-back, bm 1789 measurements: h: 86 x w: 160 x d: 76,5 x sh: 40 cm materials: cognac bison leather and beechwood frame condition: new foam cushions and the frame has minor wear. About the spoke-back sofa: the sofas are original and manufactured by either fredericia furniture or fritz hansen, depending on the age of the sofa. The upholstery is done with the same ff method. About bison leather: bison leather is a thick and sturdy leather with a rough structure, which is often used for sofas and armchairs. Bison leather has a strong surface protection, which means that it can withstand dirty fingers and red wine stains that can just be wiped away with a wet cloth. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution