Issue #51 Aug 04, 1960 Issue #52 Nov 01, 1960 Issue #53 Jan 12, 1961 Issue #54 Apr 13, 1961 Issue #55 Jul 13, 1961 Issue #56 Oct 19, 1961 Issue #57 Jan 11, 1962 Issue #58 Apr 12, 1962 Issue #59 Oct 01, 1962 Issue #60 Jan 01, 1963 Issue #61 Apr 01, 1963 Issue #62 Jul 01, 1963 Issue #63 Oct 01, 1963 Issue #64 Sep 01, 1964 Issue #65 Jan 01, 1966 Issue #66 Apr 01, 1966 Issue #67 Oct 01, 1966 Issue #68 Sep 01, 1967 Issue #69 Dec 01, 1967 Issue #70 Jul 01, 1969