The Weissenhof chair (also called MR 10 or MR 20) is a chair designed by the German architect and designer Ludwig Mies van der Rohe, in 1927.
It was made of 25 mm steel tube and with a wicker framework proposed by Lilly Reich.
The designer Sergius Ruegenberg [de], who worked in Mies van der Rohe's office at the time, described the creation of the Weissenhof chair in 1985: "Mies came back from Stuttgart in November 1926 and talked about Mart Stam and his idea for the chair.
We had a drawing board on the wall, and Mies drew the Stam chair on it, right-angled, starting from the top.
– Just a bow from his hand on the Stam sketch made up the new chair.”[2] A couple of these chairs were also part of the equipment in the Villa Tugendhat (1929) and in the Farnsworth house.