=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Digby NS            970/005 RLR(1969) is 16.1m below BM 921G
=========================== BENCHMARK INFORMATION UPDATE ADDED  12-JUL-93 :
Digby NS            970/005 RLR(1969) is 16.1m below BM 921G
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 04-Apr-2012 :   
Last data recived from Digby was that for 1970.

