Four reports from various mining companies in Mexico. A) Reports of Mining Engineers on the Mulatos Mines Belonging to the Rey Del Oro Mining Company, one of the Groups of Properties Owned by the Greene Gold-Silver Company. This report includes a map compiled by the Greene Gold-Silver Co. from Surveys Made by the Sierra Madre Land and Lumber Company and the Cananea Consolidated Copper Company in the back. 12 x 8.75, good condition, cover is damaged and taped. B) Report on Butters Copala Mines, State of Sinaloa, Mexico by E.H. Garthwaite, Late Consulting Engineer to British South Africa Company, written in 1909. 10 x 8, good condition, front cover is detached. C) Prospectus of the St. Francis Gold Mining Company Property near Magdalena, Sonora, Mexico issued in 1931. Contains information about the location, area, history, development, and economic conditions of the property. 8.5 x 11 when fully opened, good condition. D) Butters Consolidated Mines Incorporated investor booklet from 1924. This booklet contains fact about the company and its mines. There is a letter attached to it from Pouch and Company detailing their desire to purchase 160,000 shares of capital stock. 12 x 9, good condition. Mexico