Photostatic copy of a document signed : Mexico City, to Manuel Fernandez, 1880 Nov. 25.

Record ID: 
108533
Accession number: 
MA 6520
Author: 
Díaz, Porfirio, 1830-1915.
Description: 
1 item (1 p.) ; (fol.)
Summary: 

Granting to Richard Weightman for the term of six years the exclusive privilege to the use of the apparatus invented by him for the production of light by means of electricity.