This folder contains correspondence, agreements, 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. Also included is a 21-page memorandum by Sherburne B. Eaton, dated January 19, 1883, concerning a new contract involving the Edison Electric Light Co., the Edison Lamp Co., Edison, and others.

Approximately 80 percent of the documents have been selected. The following categories of documents have not been selected: routine correspondence regarding orders and shipments of lamps; receipts; trial balances and other routine financial documents; duplicate copies of selected documents.