National Steel Corporation,, 1955 December 31

National Steel Corporation,, 1955 December 31, Box: 263, Folder: 26. Saint John d'El Rey Mining Company Records, 1984-12. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/346082 Accessed September 27, 2026.