Commercial correspondence, 1947-1984, A-P, filed by corporation, i.e., CIBA, DuPont, Hooker, 1947-1984

Commercial correspondence, 1947-1984, A-P, filed by corporation, i.e., CIBA, DuPont, Hooker, 1947-1984, Box: 1. George G. Gyrisco papers, 21-23-2228. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/167358 Accessed January 18, 2026.