| Digest Nr | Subject and Author |
|---|
 |
| 2020.02.27.01 | Simplex Pneumatic Manufacturing Machinery, from Lance Reed |
| 2019.08.25.04 | Welte Recording Machinery, from Dave Krall |
| 2018.06.15.07 | Seek Welte Roll Production Machinery, from Dave Krall |
| 2003.08.13.16 | FS: Pneumatic Cloth Machinery in Georgia, from Gordon Stelter |
| 2000.10.24.04 | Music Roll Perforating Machinery, from Matthew Caulfield |
| 1997.10.22.12 | Roll Cutter Machinery in New Zealand, from David Chisholm |
| 1997.10.18.08 | Roll Cutter Machinery, from Michael Walter |
| 1997.10.17.01 | Roll Cutter Machinery, from Robert Perry |
|
