Prototype Beugel Chair 3 (Large Beugel Chair)
For this armchair Rietveld experimented with an unusual construction, completely different from that used for his wooden slatted chairs. Two tubular steel frames are joined together by a seat and back made of a single piece of fibreboard. In order to bend the board it was soaked in water first. This version is a prototype, or mock-up. From 1928 onwards Rietveld used it in exhibitions as an example of his chair designs.