CHALLENGERS OF THE UNKNOWN

1

May 1958

—

10

November 1959

—

11

January 1960

—

12

March 1960

—

13

May 1960

—

14

July 1960

—

15

August 1960

—

16

November 1960

—

17

January 1961

—

18

March 1961

—

19

May 1961

—

2

July 1958

—

20

June 1961

—

21

August 1961

—

22

November 1961

—

23

January 1962

—

24

March 1962

—

25

May 1962

—

26

July 1962

—

27

September 1962

—

28

November 1962

—

29

January 1963

—

3

September 1958

—

30

March 1963

—

31

May 1963

—

32

July 1963

—

33

September 1963

—

34

November 1963

—

35

January 1964

—

36

March 1964

—

37

May 1964

—

38

July 1964

—

39

September 1964

—

4

November 1958

—

40

November 1964

—

41

January 1965

—

42

March 1965

—

43

May 1965

—

44

July 1965

—

45

September 1965

—

46

November 1965

—

47

January 1966

—

48

March 1966

—

49

May 1966

—

5

January 1959

—

50

July 1966

—

51

September 1966

—

52

November 1966

—

53

January 1967

—

54

March 1967

—

55

May 1967

—

56

July 1967

—

57

September 1967

—

58

November 1967

—

59

January 1968

—

6

March 1959

—

60

March 1968

—

61

May 1968

—

62

July 1968

—

63

September 1968

—

64

November 1968

—

65

January 1969

—

66

March 1969

—

67

May 1969

—

68

July 1969

—

69

September 1969

—

7

May 1959

—

70

November 1969

—

71

January 1970

—

72

February 1970

—

73

May 1970

—

74

July 1970

—

75

September 1970

—

76

November 1970

—

77

January 1971

—

78

February 1973

—

79

April 1973

—

8

July 1959

—

80

July 1973

—

81

July 1977

—

82

September 1977

—

83

November 1977

—

84

January 1978

—

85

March 1978

—

86

May 1978

—

87

July 1978

—

9

September 1959

—