 
 HISTORY
  NM48/49-- CHESAPEAKE BAY-POTOMAC RIVER-WRECK-BUOYS ESTABLISHED; A WRECK WITH A SWEPT DEPTH OF 65 FEET OF WATER OVER IT EXISTS IN LAT. 38-08-10N, 76-33-10W.  MARKED BY 3 YELLOW BUOYS.
  H08550/60-- INTENSIVE ECHO SOUNDER  INVESTIGATION BY