These documents cover the period August 1882-September 1883. Included is a letter from Edison to F. N. Lawrence, president of the New York Stock Exchange, regarding the installation of Edison's stock quotation system at the exchange. Also included are letters to stock exchange officials from Edward H. Johnson, vice president of the Edison Electric Light Co., and Frank S. Hastings, treasurer of the Edison Electric Illuminating Co. of New York. They pertain to the lighting of the exchange with power from the recently opened central station on Pearl Street.