4. 8-ton radio telescope (E.E. School), date unknown Collection: Images from the Rare Book and Manuscript Collections Location: Cornell University, Ithaca, New York Format: Image
5. Rectifier Collection: Images from the Rare Book and Manuscript Collections Location: Carpenter Hall Format: Image
7. Herbert H. Johnson (standing) Collection: Images from the Rare Book and Manuscript Collections Format: Image
8. Robert Balluffi (at right) Collection: Images from the Rare Book and Manuscript Collections Format: Image