| Digest Nr | Subject and Author |
 |
| 2010.05.12.03 | Seek Firm to Duplicate Old Piano Rolls, from John A. Tuttle |
| 2010.04.03.02 | Seek Contract With Music Roll Copying Firm, from Duaine Hechler |
| 2008.07.26.04 | Pianocorder Repair Firm, from Jack M. Conway |
| 2007.04.29.02 | Seek Crating & Shipping Firm in London, from Tim LaGanke |
| 2006.11.15.03 | Piano Crating Firm in London, from Nick Hawkins |
| 2006.11.14.03 | Piano Crating Firm in London, from Tony Brooks |
| 2006.11.14.02 | Piano Crating Firm in London, from Mark Singleton |
| 2006.11.13.09 | Seek Piano Crating Firm in London, from Philip Jamison |
| 2005.03.17.01 | Bacigalupi and Sons, San Francisco Organ Firm, from Robbie Rhodes |
| 2005.03.03.13 | Instrument Moving Firm, from Randolph Herr |
| 2005.01.30.07 | Seek California Firm To Rebuild Piano Motor, from Brian Smith |
| 2004.02.22.08 | Seek Firm to Perforate Custom Piano Rolls, from Stephen Simpson |
| 2002.11.02.01 | Seek Pipe Organ Salvage Firm, from Richard Schneider |
| 2002.11.01.02 | "Pipe Organ Restorations" Salvage Firm, from Bob Loesch |
| 2002.10.31.04 | Seek Pipe Organ Salvage Firm, from Ken Vinen |
| 2002.01.12.08 | Seek Firm "Pedals, Pumpers and Rolls", from Larry Mayo |
| 2000.02.01.03 | Heinrich Voigt (Voight) Firm of Frankfurt, from Hauke Marxsen |
| 2000.01.05.05 | Heinrich Voigt Firm of Frankfurt, from Matthew Caulfield |
 |