This model Grand Repos lounge chair was designed by Jean Prouvé and produced by the German company Tecta. This model is out of production. It's also sometimes referred to as the machine chair. Only 1000 units of this lounge chair exist. This model was reintroduced by Tecta in response to the model of Jean Prouvé from 1928. 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