Case Study House #20(B) located in Altadena, California and designed by Buff, Straub, and Hensman in 1958. Photo: Julius Shulman / Getty Archives Mid-Century Home February 11, 2019 Case Study House #20(B) located in Altadena, California and designed by Buff, Straub, and Hensman in 1958. Photo: Julius Shulman / Getty Archives