"Keystone Stereographs - Solid Geometry" Used by Nolan at Illinois Institute of Technology - 48 Slides

"Keystone Stereographs - Solid Geometry" Used by Nolan at Illinois Institute of Technology - 48 Slides, Box: 3, Folder: 4. Leah Nolan papers, RH MS 422. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/90796 Accessed December 24, 2025.