Issue #492 Mar 16, 1993 Issue #493 Mar 30, 1993 Issue #494 Apr 01, 1993 Issue #495 Apr 01, 1993 Issue #496 May 11, 1993 Issue #497 May 25, 1993 Issue #498 Jun 15, 1993 Issue #499 Jul 13, 1993 Issue #500 Aug 17, 1993 Issue #501 Sep 14, 1993 Issue #502 Oct 12, 1993 Issue #503 Nov 16, 1993 Issue #504 Dec 14, 1993 Issue #505 Jan 11, 1994 Issue #506 Feb 08, 1994 Issue #507 Mar 15, 1994 Issue #508 Apr 12, 1994 Issue #509 May 24, 1994 Issue #510 Jun 14, 1994 Issue #511 Jul 12, 1994