
 HISTORY
  UNKNOWN SOURCE--SEVEN VISIBLE PILES, SCALED FROM CHART IN LAT. ì
30-25-45.0N, LONG. 86-08-07.0W. (ENT 9/88, SRB)
  H10452/93-- OPR-J259-AHP; NUMEROUS VISIBLE PILES NOTED IN ì
VICINITY OF ITEM. DANGER TO NAVIGATION LETTER SENT ESTABLISHING