737 Leaders
Water
1973
Yorkshire
Arabic
Dutch
French
German
German, different logo
Ducks and swans
1973
Arabic
German
German, different logo
German
Man in the air
1973
Arabic
German
German, different title
Man and his car
1974
Arabic
German
German, different title
Lions and tigers
1974
Arabic
French
German
German, different logo
German
Spanish
Man on the sea
1974
Arabic
Dutch
German
German, different title
Dinosaurs
1974
Arabic
French
German
German, different logo
1988 series 882
German
1994 series 9429
Castles
1974
Arabic
Dutch
French
Baby animals
1974
Arabic
Dutch
French
German
German, different logo
German
Roads
1974
Arabic
Dutch
German
Song birds
1974
Arabic
Dutch
German
German, different logo
Trains
1974
Arabic
Dutch
French
German
German, different logo
Bridges
1974
Arabic
Leaves
1975
Arabic
Soldiers
1975
Arabic
Dutch
French
German
Sounds
1975
Arabic
Dutch
German
Big animals
1975
Arabic
Dutch
French
German
Under the ground
1975
Arabic
Dutch
German
Apes and monkeys
1975
Arabic
Dutch
German
Living things
1975
Arabic
German
The tree and its world
1975
Arabic
Dutch
French
German
Air
1975
Arabic
Dutch
French
German
Seals and whales
1976
Arabic
Dutch
Sea life centres
Reptiles
1976
Arabic
Dutch
German
Deserts
1976
Arabic
Dutch
The stream
1976
Arabic
Chocolate and cocoa
1977
Arabic
Dutch
Polar regions
1977
Arabic
Dutch
Mountains
1977
Arabic
Dutch
Forests
1977
Arabic
Dutch
Islands
1979
Arabic
Dutch
Bears and pandas
1979
Arabic
Dutch
German
Tea
1981
Arabic