Bureau of Ordnance to Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters
November 1, 1918
VICE ADMIRAL SIMS
OPNAV 4346 (BOX) Assuming necessity to renew or parallel Northern Barrage next year account deterioration present barrage. Advise in detail concerning mines required. Inventory mine material on hand after completion this year’s work requested as soon as possible. 16301 4346
Source Note: Cy, DNA, RG 45, Entry 517B.