Before revision: Crisis Ten Cents' Tax The license of November 27, 1873 Beginning in 1866, the Chilean entrepreneurs José Santos Ossa and Francisco Puelma had exploited deposits of sodium nitrate in Bolivian territory (the salitreras "Las Salinas" and "Carmen Alto", and from Antofagasta, respectively) and secured concessions from Bolivian President Mariano Melgarejo.
After revision: Crisis Ten Cents' Tax License of November 27, 1873 Beginning in 1866, the Chilean entrepreneurs José Santos Ossa and Francisco Puelma had exploited deposits of sodium nitrate in Bolivian territory (the salitreras "Las Salinas" and "Carmen Alto", and from Antofagasta, respectively) and secured concessions from Bolivian President Mariano Melgarejo.