President of Mexico from 1877 to 1880 and 1884 to 1911. Lot of three partially printed mining-related DS in Spanish, each three pages on two adjoining sheets, approximately 10.5 x 16, 1890s. Díaz has signed as President of Mexico on the second page of each document. Accompanied by two hand-drawn mining-related schematics, both also in Spanish. In fine condition overall, with partial separations and a few tears along folds and mild scattered soiling and wrinkling. The signatures are large and distinct. R&R COA.