06/04/1879 Goddard, Calvin to Edison, Thomas Alva
(Fabbri, Egisto Paolo) Expositions, demonstrations, lectures; Electric light and power
[D7920]  Document File Series -- 1879: (D-79-20) Electric Light -- Edison Electric Light Co
[D7920ZAQ; TAEM 50:260]
Courtesy of Thomas Edison National Historical Park.