| Digest Nr | Subject and Author |
|---|
 |
| 2017.02.17.01 | Horizontal Grooves in Welte Tracker Bar, from Jeff Davis |
| 2017.02.15.04 | Horizontal Grooves in Welte Tracker Bar, from Paddy Handscombe |
| 2017.02.14.03 | Horizontal Grooves in French Welte-Mignon, from Julian Dyer |
| 2017.02.13.04 | Horizontal Grooves in French Welte-Mignon, from Robbie Rhodes |
| 2017.02.13.03 | Horizontal Grooves in Welte T100 Tracker Bar, from John McClelland |
| 2017.02.13.02 | Horizontal Grooves in 1928 Welte Tracker Bar, from Allen Ford |
| 2017.02.13.01 | Horizontal Grooves in Welte Organ Tracker Bar, from Dave Krall |
| 2003.06.23.10 | Cutting Grooves for Pipe Tuning Slides, from Arthur Nichols |
| 2003.06.20.08 | Cutting Grooves for Organ Pipe Tuning Slide, from Russ Doering |
| 2003.06.20.07 | Cutting Grooves for Organ Pipe Tuning Slide, from Nicholas Simons |
| 2003.06.20.06 | Cutting Grooves for Organ Pipe Tuning Slide, from John Nolte |
| 2003.06.19.07 | Cutting Grooves for Organ Pipe Tuning Slide, from Jules Shaffer |
|
