This folder contains correspondence and other documents relating to the commercial and technical development of Edison's alkaline storage battery and its use in lightweight electric delivery wagons. The documents concern road tests made in the vicinity of Edison's laboratory, on a route of his choosing, during the period August-December 1911. Included are instructions for the tests prepared by Edison for his chief engineer, Donald M. Bliss, and an undated blueprint containing a map of the test course along with instructions to the drivers. Most of the documents were prepared by Bliss and Edison employee Isidor (Jerry) Chesler and provide test results for the vehicle known as "Wagon #2."

Approximately 20 percent of the documents have been selected. The material not selected consists of duplicate and variant versions of the data; some data from tests conducted during 1910; and an undated blueprint containing a map of the test course and instructions for drivers of the vehicle known as "Wagon #1."

Courtesy of Thomas Edison National Historical Park.