Studio BBPR was an architectural and design studio established in Milan in 1932. BBPR is an acronym of its founders’ names: Gian Luigi Banfi, Lodovico Barbiano di Belgiojoso, Enrico Peressutti and Ernesto Nathan Rogers. The studio became an influential artistic and intellectual entity of Italian rationalism, embracing the philosophical concept of ideal proportions. The studio worked at the forefront of design and architecture throughout the 20^th century, notably building the Torre Velasca, Milan, in 1954.