Eduard Ludwig, Georg Haydvogel, 2 Stools Model EL 121 Ringsitzhocker 2 stools model EL 121 Ringsitzhocker. Designed around 1949. Wood, unscrewable legs. H. 44 / 46.5 D. 35.5 cm. This stool is also called Bauhaus stool, although the origin of this name is not completely clear. The fact is that Eduard Ludwig was a student at the Bauhaus and worked in the architecture office of Ludwig Mies van der Rohe.