  UNKNOWN SOURCE;  FIRST CHARTED ON CHART 13292 (325) IN 1930 AS A DANGEROUS SUBMERGED WRECK.  REVISED TO A VISIBLE WRECK SYMBOL IN 1941.  REVISED TO A DASHED AREA WITH LEGEND "WRECK" IN 1943.
  CL1739/97-- USPS; WRECK REPORTED TO "COVER AND UNCOVER".