This model A-20 lounge chair was designed by Groep & for Goed Wonen in the Netherlands in 1946. It was the first post-war designed manufactured by Goed Wonen. It features a straightforward birch construction and new Rocks Keymer fabric upholstery in green. 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