Bonanza. Miguel Berain to Jacobo S. Navarro. In regard to amount of silver mine can produce, 1856, Aug. 16:

Bonanza. Miguel Berain to Jacobo S. Navarro. In regard to amount of silver mine can produce, 1856, Aug. 16:, Box: 1, Item: 1622. Sánchez Navarro Collection of Documents for a History of Texas and Coahuila, 30605850. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/303419 Accessed September 27, 2026.