This is a very rare chair. This piece is a predecessor (wooden legs) of the famous Shell chair, one of Niko Kralj's timeless classics besides the well known MOMA exhibited Rex folding chair. It's made out of plywood and upholstered with an original grey durable fabric. In mint original condition. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution