Issue #1 Feb 01, 1948 Issue #2 Apr 16, 1948 Issue #3 Nov 19, 1968 Issue #4 Jan 09, 1969 Issue #5 Mar 11, 1969 Issue #6 Aug 26, 1969 Issue #7 Oct 21, 1969 Issue #8 Feb 24, 1970 Issue #9 Apr 21, 1970 Issue #10 Jun 23, 1970 Issue #11 Aug 18, 1970 Issue #12 Oct 27, 1970 Issue #13 Jan 19, 1971 Issue #14 Apr 13, 1971 Issue #15 Jul 06, 1971 Issue #16 Oct 05, 1971 Issue #17 Jan 04, 1972 Issue #18 Apr 04, 1972 Issue #19 Jun 06, 1972 Issue #20 Jul 04, 1972