Country

• Rwanda (3) 

  Central African Republic (1) Comoros (3) Congo (Brazzaville) (3) Equatorial Guinea (1) Ivory Coast (1) Sao Tome and Principe (1) Swaziland (1)

Year

• 1978 (3) 

  1962 (1) 1963 (3) 1964 (1) 1965 (2) 1966 (2) 1967 (1) 1970 (1) 1971 (1) 1972 (1) 1973 (3) 1974 (2) 1975 (2) 1976 (3) 1979 (1) 1980 (2) 1982 (2) 1983 (2) 1984 (2) 1985 (2) 1987 (1) 1988 (2) 1990 (2) 1991 (1)

Themes

•  History (1)
•  Insects (1)
•  Transport (1)