=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Oct-1996
instrument type: Leupold and Stevens, model A-71, float gauge
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 22-Sep-1997
1932-33: data from gauge operated by the East Africa Railways Corporation
1960s-1976 (intermittently): data from Munro 1861/48 gauge at Kipevu
pilot jetty