Armchair structure base in cast aluminium. In original condition, with minor wear consistent with age and use, preserving a beautiful patina. Seat, backrest are in plywood with exteriors in roble effect Upholstered in green fabric Y17. This piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution