09/17/1881 Upton, Francis Robbins to Goddard, Calvin
Financial operations (companies and organizations); Testing and quality control; Incandescent lamp [Attachment/Enclosure]
[D8123]  Document File Series -- 1881: (D-81-23) Electric Light -- Edison Electric Lamp Co -- General
[D8123ZDT; TAEM 57:960]
Courtesy of Thomas Edison National Historical Park.