Issue #417 Aug 31, 1972 Issue #418 Sep 28, 1972 Issue #419 Oct 26, 1972 Issue #420 Nov 30, 1972 Issue #421 Dec 28, 1972 Issue #422 Jan 30, 1973 Issue #423 Feb 27, 1973 Issue #424 Mar 29, 1973 Issue #425 Apr 26, 1973 Issue #426 May 31, 1973 Issue #427 Jun 28, 1973 Issue #428 Jul 31, 1973 Issue #429 Aug 30, 1973 Issue #430 Sep 27, 1973 Issue #431 Oct 30, 1973 Issue #432 Nov 29, 1973 Issue #433 Dec 28, 1973 Issue #434 Jan 31, 1974 Issue #435 Feb 28, 1974 Issue #436 Mar 28, 1974