98. Four men, two in sombreros, outside timber-reinforced mine entrance; print captioned "VETA MADRE SILVER MINE, Tunnel No 1, in 1500 feet. Property of GUERRERO DEVELOPMENT CO."

98. Four men, two in sombreros, outside timber-reinforced mine entrance; print captioned "VETA MADRE SILVER MINE, Tunnel No 1, in 1500 feet. Property of GUERRERO DEVELOPMENT CO.", Box: 1. James E. Long Photograph Collection, 352928987. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/416597 Accessed September 27, 2026.