=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Abidjan             405/001 RLR(1975) is 10.9m below Repere IGNA2
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Abidjan             405/001 RLR(1975) is 10.9m below Repere IGNA2