Vintage ergonomical and adjustable chairs by Rybo Rykken & co. The seats and backrests can be changed in height and make them very versatile. Cool and timeless design chairs. 1970s - Norway Good condition with normal age related wear - still very sturdy. Labeled. Height: 100cm Seat height is adjustable Width: 42cm Depth: 50cm 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