  LNM52/72--CGD3 (12/6/72);  THE 45-FOOT TUG, FREDERICK M., IS REPORTED SUNK IN 50 FEET OF WATER IN APPROXIMATELY 39/15N, 074/18W (NAD27).  NO PORTION OF THE VESSEL IS VISIBLE ABOVE WATER.
  NM1/73--1/6/73;  WRECK SUNK IN 39/15N, 074/18W (NAD27).  (ENTE