Mart Stam (1899, Purmerend - 1986, Zürich)
      Mart Stam was a Dutch architect, urban planner, and chair designer. Stam was extraordinarily well-connected, and his career intersects with important moments in the history of 20th century European architecture, including chair design at the Bauhaus, the Weissenhof Estate, an important modernist landmark factory in Rotterdam, buildings for Ernst May's Weimar Frankfurt housing project then to Russia with the idealistic May Brigade, to postwar reconstruction in Germany.
      After moving to Berlin, Stam devised a steel-tubing cantilever chair, using lengths of standard gas pipe and standard pipe joint fittings. Ludwig Mies van der Rohe became aware of Stam's work on the chair during planning for the Weissenhof Siedlung and mentioned it to Marcel Breuer at the Bauhaus. This led almost immediately to variations on the cantilevered tubular-steel chair theme by both Mies van der Rohe and Marcel Breuer, and began an entire genre of chair design.
      In the late 1920s, Breuer and Stam were involved in a patent lawsuit in German courts, both claiming to be the inventor of the basic cantilever chair design principle. Stam won the lawsuit, and, since that time, specific Breuer chair designs have often been erroneously attributed to Stam. In the United States, Breuer assigned the rights to his designs to Knoll, and for that reason it is possible to find the identical chair attributed to Stam in Europe and to Breuer in the U.S. [en]