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 documents in this folder are from February-April 1917. They pertain to Edison's idea of smudging the skyline with smoke to prevent enemy submarines from spotting U.S. ships. One of the letters by Daniels also discusses the secret wireless project (Report 26).
This project is described on p. 176 of Lloyd N. Scott's Naval Consulting Board of the United States. Courtesy of Charles Hummel.