Ninety-one issues published from August 1929 to February 1936 by an Organization of Students of Plate Research Problems – Acting as the Plate Varieties Committee of the Bureau Issues Association
Editor: C. W. Bedford Aug 1929 – Dec 1933
L. M. Ryer Jan 1934 – Feb 1936
- Shift Hunters Letter # 1 Aug 1929
- Shift Hunters Letter # 2 Sep 1929
- Shift Hunters Letter # 3 Sep 1929
- Shift Hunters Letter # 4 Oct 1929
- Shift Hunters Letter # 5 Nov 1929
- Shift Hunters Letter # 6 Dec 1929
- Shift Hunters Letter # 7 Jan 1930
- Shift Hunters Letter # 8 Jan 1930
- Shift Hunters Letter # 9 Jan 1930
- Shift Hunters Letter # 10 Feb 1930
- Shift Hunters Letter # 11 Feb 1930
- Shift Hunters Letter # 12 Feb 1930
- Shift Hunters Letter # 13 Feb 1930
- Shift Hunters Letter # 14
- Shift Hunters Letter # 15
- Shift Hunters Letter # 16 Apr 1930
- Shift Hunters Letter # 17 Aug 1930
- Shift Hunters Letter # 18 Sep 1930
- Shift Hunters Letter # 19
- Shift Hunters Letter # 20
- Shift Hunters Letter # 21
- Shift Hunters Letter # 22 Oct 1930
- Shift Hunters Letter # 23
- Shift Hunters Letter # 24
- Shift Hunters Letter # 25
- Shift Hunters Letter # 26
- Shift Hunters Letter # 27
- Shift Hunters Letter # 28
- Shift Hunters Letter # 29
- Shift Hunters Letter # 30 Apr 1931
- Shift Hunters Letter # 31
- Shift Hunters Letter # 32 May 1931
- Shift Hunters Letter # 33
- Shift Hunters Letter # 34
- Shift Hunters Letter # 35
- Shift Hunters Letter # 36
- Shift Hunters Letter # 37
- Shift Hunters Letter # 38
- Shift Hunters Letter # 39
- Shift Hunters Letter # 40
- Shift Hunters Letter # 41
- Shift Hunters Letter # 42
- Shift Hunters Letter # 43
- Shift Hunters Letter # 44
- Shift Hunters Letter # 45
- Shift Hunters Letter # 46
- Shift Hunters Letter # 47
- Shift Hunters Letter # 48
- Shift Hunters Letter # 49
- Shift Hunters Letter # 50
- Shift Hunters Letter # 51
- Shift Hunters Letter # 52
- Shift Hunters Letter # 53
- Shift Hunters Letter # 54
- Shift Hunters Letter # 55
- Shift Hunters Letter # 56
- Shift Hunters Letter # 57
- Shift Hunters Letter # 58
- Shift Hunters Letter # 59
- Shift Hunters Letter # 60
- Shift Hunters Letter # 61
- Shift Hunters Letter # 62
- Shift Hunters Letter # 63
- Shift Hunters Letter # 64
- Shift Hunters Letter # 65
- Shift Hunters Letter # 66 Vol VI No 1 Jan 1934
- Shift Hunters Letter # 67 Vol VI No 2 Feb 1934
- Shift Hunters Letter # 68 Vol VI No 3 Mar 1934
- Shift Hunters Letter # 69 Vol VI No 4 Apr 1934
- Shift Hunters Letter # 70 Vol VI No 5 May 1934
- Shift Hunters Letter # 71 Vol VI No 6 Jun 1934
- Shift Hunters Letter # 72 Vol VI No 7 Jul 1934
- Shift Hunters Letter # 73 Vol VI No 8 Aug 1934
- Shift Hunters Letter # 74 Vol VI No 9 Sep 1934
- Shift Hunters Letter # 75 Vol VI No 10 Oct 1934
- Shift Hunters Letter # 76 Vol VI No 11 Nov 1934
- Shift Hunters Letter # 77 Vol VI No 12 Dec 1934
- Shift Hunters Letter # 78 Vol VII No 1 Jan 1935
- Shift Hunters Letter # 79 Vol VII No 2 Feb 1935
- Shift Hunters Letter # 80 Vol VII No 3 Mar 1935
- Shift Hunters Letter # 81 Vol VII No 4 Apr 1935
- Shift Hunters Letter # 82 Vol VII No 5 May 1935
- Shift Hunters Letter # 83 Vol VII No 6 Jun 1935
- Shift Hunters Letter # 84 Vol VII No 7 Jul 1935
- Shift Hunters Letter # 85 Vol VII No 8 Aug 1935
- Shift Hunters Letter # 86 Vol VII No 9 Sep 1935
- Shift Hunters Letter # 87 Vol VII No 10 Oct 1935
- Shift Hunters Letter # 88 Vol VII No 11 Nov 1935
- Shift Hunters Letter # 89 Vol VII No 12 Dec 1935
- Shift Hunters Letter # 89x Vol VII No 13 Dec 1935
- Shift Hunters Letter # 90 Vol VIII No 1 Jan 1936
- Shift Hunters Letter # 91 Vol VIII No 2 Feb 1936
- Shift Hunters Letter # 92 Vol VIII No 3 Mar 1936
- Shift Hunters Letter # 93 Vol VIII No 6 Jun 1937
- Shift Hunters Letter # 94 Jul 1937
- Shift Hunters Letter # 95 Aug 1937
- Shift Hunters Letter # 96 Sep 1937
- Shift Hunters Letter # 97 Oct 1937
- Shift Hunters Letter # 98 Nov 1937
- Shift Hunters Letter # 99 Dec 1937
- Shift Hunters Letter # 100 Jan 1938
- Shift Hunters Letter # 101 Feb 1938
- Shift Hunters Letter # 102 Mar 1938
- Shift Hunters Letter # 103 Apr 1938
- Shift Hunters Letter # 104 May 1938
- Shift Hunters Letter # 105 Jun 1938
- Shift Hunters Letter # 106 Jul 1938
- Shift Hunters Letter # 107 Aug 1938
- Shift Hunters Letter # 108 Sep 1938
- Shift Hunters Letter # 109 Oct 1938
- Shift Hunters Letter # 110 Nov 1938
- Shift Hunters Letter # 111 Dec 1938
- Shift Hunters Letter # 112 Jan 1939
- Shift Hunters Letter # 113 Feb 1939
- Shift Hunters Letter # 114 Apr 1939
- Shift Hunters Letter # 115 May 1939