1921 - 1925 VALUES BASED ON 3 READINGS PER DAY Station is in Russia. Formerly Finland and known as Koivisto =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991 Primorsk 080/004 RLR(1938) is 10.1m below BM 2215X =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993 Primorsk 080/004 RLR(1938) is 10.1m below BM 2215X Primorsk is an historic station last data 1939