This folder contains printed material issued by the Edison Electric Light Co. This company was established in late 1878 to provide Edison with funds for his experiments in electric lighting in return for control of any patents he might receive in this field. The company licensed these patents to subsidiary companies like the Edison Machine Works and Edison Electric Illuminating Co. of New York. These manufacturing and operating companies built and sold electrical equipment and constructed central stations, while paying royalties to the Edison Electric Light Co.

The following items have been selected:

1. Annual Report (1885)
2. Annual Report (1886)
3. "The Edison Central Station System" [second edition] (1885)
4. Central Station Catalog (1886)
5. Testimonial from the Laramie Electric Light Co. (1886)

The following items have not been selected:

1. "The Edison Central Station System" [first edition] (1884?)
2. "The Edison Electric Light Meter" [This pamphlet also appears as an enclosure to a letter from Francis Jehl to Edison, May 11, 1882, D-82-039 (Document File Series).]