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- Tonga, 1967
- 1968
- 50s
- 1970
- 50s
- 1971
- 50s
- 1972
- 1973
- 50s
- 1974
- 1975
- 1976
- 1977
- 50s
- 50s
- 50s
- 1978
- 1979
- 50s
- 1980
- 1986
- 50s
- 50s
- 50s
- 50s
- 50s
- 50s
- 50s
- 50s
- 1989
- 1998
- airmail, 1974
- official, 1972
- official airmail, 1970
- 1971
- 1972
- 50s
- 1973
- 50s
- 1974
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