
 HISTORY
  FE387SS/94-- OPR-E696-HE; SIDE SCAN SONAR CONTACT. DIVERS ì
DESCRIBE METAL PLATES ON TOP OF A CONCRETE BLOCK TIED TOGETHER ì
WITH CHAINS. PNEUMO LD OF 12.9 METERS (42 FEET) IN LAT. ì
36-56-27.426N, LONG. 76-02-31.286W. EVALUATOR RECOMMENDS