Staircase designed by Michael van Beuren (1911-2004). Van Beuren moved to Mexico, where he designed and made furniture among other activities. As a former Bauhaus student, he was involved in the recruitment of Mies to IIT in the 1930s. In his later years, he designed and operated the first industrial plant to manufacture chip board in Mexico. He designed this staircase in 1952 at his old residence, Av. Ruben Dario 143 Col. Polanco, Mexico city. Picture taken by Bertrand Goldberg. Due to techcial issues we do not know who submitted this, but thanks!