919.13: A letter from Frank LLoyd Wright to Lynn Beedle regarding the design of a mile high building, and the use of an Otis Elevator Company "integrated building transit system", September 14, 1956

919.13: A letter from Frank LLoyd Wright to Lynn Beedle regarding the design of a mile high building, and the use of an Otis Elevator Company "integrated building transit system", September 14, 1956, Folder: N/A; Box: 63. Council on Tall Buildings and Urban Habitat Records, SC MS 0263. Lehigh University Grant Projects. https://archivesspace.lib.lehigh.edu//repositories/7/archival_objects/63970 Accessed May 20, 2026.