José Espinho was one of the most amazing Portuguese designers of the 20th Century. The Armchair Model Prefa for Movéis Olaio is one of the greatest pieces done by José Espinho. The back of the chair is detached from the structure, and it holds only by gravity. It’s was produced in 1962 and is made of cedar wood and synthetic leather. with the original upholstery in blue and red. The mix is simply amazing. 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