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Located in Series 3) Real Del Monte Mining Complex, subseries A) Mining Operations. Inscription on back: AD-2 Special Collections & Archives, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/sca) This digital image is a surrogate of an item from the José Villegas Collection on Mining. [Title, Date]. José Villegas Collection on Mining. MSS 758. Special Collections & Archives, UC San Diego.
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Silver mines and mining Compañía Real del Monte y Pachuca Hidalgo (Mexico)