 HISTORY
  BP68658--1/65, COE; MIDDLE GROUND MARKER, LAT.24-34-47.85N, LONG.81-49-53.05W 
  CL907/75--CAS 11447 (1975), OPR-511-PE-75, ITEM 11; MARKER LOCATED AT CHARTED 
POSITION, RETAIN AS CHARTED MARKERS.