NO BM INFORMATION BUT DATA SEEMS HOMOGENEOUS
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Otranto             270/011 RLR(1970) is 9.6m below BM
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Otranto             270/011 RLR(1970) is 9.6m below BM
Otranto is an historic station. Last data 1970