| Digest Nr | Subject and Author |
|---|
 |
| 2011.03.03.02 | Rubberized Cloth Survey, from John Farmer |
| 2011.02.23.04 | Rubberized Cloth Survey, from Robbie Rhodes |
| 2009.09.11.01 | Player Piano Company (PPCo) Survey, from Robbie Rhodes |
| 2001.07.09.04 | PowerRoll Delivery Survey, from Jack M. Conway |
| 2001.07.05.07 | PowerRoll Delivery Survey, from Jack M. Conway |
| 2001.06.04.01 | Roller Organ Survey, from Todd Augsburger |
| 2000.10.12.02 | Credit Card Survey Results, from John A. Tuttle |
| 2000.09.20.04 | Credit Card / Internet Survey, from John A. Tuttle |
| 1998.02.12.14 | New Survey at Player-Care, from John A. Tuttle |
| 1997.11.16.07 | Ragtime Automated Music (RAM) Survey, from Andy Taylor |
| 1997.11.08.09 | RAM Survey, from Andy Taylor |
| 1997.10.03.09 | Scott Currier's Solenoid Piano Survey, from Scott Currier |
| 1997.10.02.07 | Scott Currier's Solenoid Piano Survey, from John A. Tuttle |
| 1997.10.01.16 | Solenoid Piano Survey Results, from Scott Currier |
| 1997.09.19.01 | MMD Contact Survey, from Jody Kravitz |
| 1996.03.02.04 | Netherlands Pianola Association Survey, from Wybe van der Wal |
|
