These newsletters are the work of the original ENIGMA (European Numbers Information Gathering and Monitoring Association) group and have been converted into PDF format. ENIGMA was founded by Chris Midgley and Mike Gaufman who researched numbers stations and produced newsletters from 1993-2000.
They published them in hard copies, originally releasing 4 newsletters a year and then changed to releasing 2 a year instead. These newsletters contain the first works of in-depth numbers stations research and also created the first system of classification for them.
Before the Group disbanded in 2000 the Co-Founder of ENIGMA, Mike G. stated that all ENIGMA publications and research material would be archived in the British Library, which includes these newsletters.
ENIGMA Newsletters Issues 1-18
Issue | Date Published |
| Issue #1 | 1993 |
| Issue #2 | June 1993 |
| Issue #3 | October 1993 (2nd Week) |
| Issue #4 | January 1994 (2nd Week) |
| Issue #5 | May 1994 (2nd Week) |
| Issue #6 | September 1994 (2nd Week) |
| Issue #7 | January 16th, 1995 |
| Issue #8 | May 1995 |
| Issue #9 | October 1995 |
| Issue #10 | Late March 1996 |
| Issue #11 | August 1996 (2nd Week) |
| Issue #12 | February 1997 |
| Issue #13 | July 1997 |
| Issue #14 | January 1998 |
| Issue #15 | July 1998 |
| Issue #16 | January 1999 |
| Issue #17 | July 1999 |
| Issue #18 | January 2000 |
These newsletters were originally posted by Simon Mason, and were scanned by priyom.org
