Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Heating and duct layout: third floor and roof plans, section (1/4" and 1 1/2" = 1'-0") by Walter Gropius, Marcel Breuer — VisualArtsDB
Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Heating and duct layout: third floor and roof plans, section (1/4" and 1 1/2" = 1'-0")