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Naval History and Heritage Command

Naval History and Heritage Command

Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters, to the Office of the Chief of Naval Operations

Subject Copy.

File No. <25-32-1>

Cablegram Sent 23 February 1918.  ROC

To Opnav, Washington.                 Serial No. 4323

Prep. by O-4            SX   D.R.

                                  23-ADR

VERY SECRET

4323. Plans call for a K. tube sound barrage thirty five miles north of Dover-Calais line to prevent surprise raids on Dover barrage. Request twelve K. tubes complete immediately by first steamer. If necessary they should be diverted from sub-chasers for this work.

Sims.             

Source Note: Cy, DNA, RG 45, Entry 520, Box 337.

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