This folder contains correspondence, agreements, by-laws, and other documents relating to the business of the Edison Lamp Co. Most of the correspondence is by Francis R. Upton, general manager and treasurer of the company.
Approximately 70 percent of the documents have been selected. The following categories of documents have not been selected: routine correspondence regarding orders and shipments of lamps; trial balances; duplicate copies of selected documents. Courtesy of Thomas Edison National Historical Park.