Admiral William S. Benson, Chief of Naval Operations, to Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters
August 18, 1917.
Admiral Benson Opnav 187
NC BR 20017
Chief of Staff; Babcock; Schuyler.
From Admiral Benson
To Admiral Sims.
Opnav 187. Bureau of Ordnance has developed mine which it <is> hoped may have decisive influence upon operations against submarine period. Utmost secrecy considered necessary stop. Request that officer representing Admiralty clothed with power to decide be sent <here> and inspect and thoroughly test mine <if> found satisfactory arrange for co-operation in mine operation, 20017
Source Note: Cy, DNA, RG 45, Entry 517B.