Le Corbusier first relied on ready-made furniture from Thonet to furnish his projects, such as his pavilion at the 1925 Exposition. In 1928, following the publication of his theories, he began experimenting with furniture design. In 1928, he invited the architect Charlotte Perriand to join his studio as a furniture designer. His cousin, Pierre Jeanneret, also collaborated on many of the designs. For the manufacture of his furniture, he turned to the German firm Gebrüder Thonet, which had begun making chairs with tubular steel, a material originally used for bicycles, in the early 1920s. Le Corbusier admired the design of Marcel Breuer and the Bauhaus, who in 1925 had begun making sleek modern tubular club chairs. Mies van der Rohe had begun making his own version in a sculptural curved form with a cane seat in 1927.