Issue #21 Apr 26, 1939 Issue #22 May 31, 1939 Issue #23 Jun 28, 1939 Issue #24 Jul 26, 1939 Issue #25 Aug 30, 1939 Issue #26 Sep 27, 1939 Issue #27 Oct 25, 1939 Issue #28 Issue #29 Issue #30 Jan 31, 1940 Issue #31 Feb 28, 1940 Issue #32 Mar 27, 1940 Issue #33 Apr 26, 1940 Issue #34 May 24, 1940 Issue #35 Jun 26, 1940 Issue #36 Jul 24, 1940 Issue #37 Aug 23, 1940 Issue #38 Sep 25, 1940 Issue #39 Oct 25, 1940 Issue #40