This collection consists primarily of letters exchanged between Edison and Secretary of the Navy Josephus Daniels, along with related correspondence. Many of the typewritten letters are accompanied by drafts in Edison's hand. The two letters in this folder are from February and March 1917. They pertain to Edison's plans to develop a searchlight for use by submarines under water. Related material can be found in Report 20.
This project is described on p. 177 of Lloyd N. Scott's Naval Consulting Board of the United States. Courtesy of Charles Hummel.