| Digest Nr | Subject and Author |
 |
| 2008.10.27.20 | FS: Hardman Peck Electric Player Piano in Ohio, from Albert Petrak |
| 2007.12.06.09 | Rebuilding Hardman Duo Player Piano, from Bob Stewart |
| 2006.12.22.08 | FS: 6' 10" Hardman Peck Welte Licensee Grand, from Randolph Herr |
| 2006.11.28.06 | FS: Hardman Duo 1958 Player Piano Parts, from James Williams |
| 2006.08.14.04 | FS: 1958 Hardman Duo & Schultz Player Piano Parts, from James Williams |
| 2004.01.06.08 | Hardman Duo Player Piano by Aeolian, from Arthur Marino |
| 2004.01.05.11 | Repairing Hardman Duo Player Piano, from Ellsworth Johnson |
| 2004.01.04.15 | FS: Hardman Duo Player Piano, from LS0420 |
| 2003.08.25.05 | FS: Hardman Duo/Art Player Piano Action, from James Williams |
| 2003.08.11.09 | Repairing Valve in Hardman Duo Console Player, from Jeff Bridges |
| 2003.04.25.03 | FS: Schultz & Hardman Duo Player Actions, from James Williams |
| 2001.12.21.07 | FS: 1957 Hardman Duo 45" Console Player Piano, from Thomas Ahearn |
| 2001.11.05.06 | Seek Hardman Peck Duo-Art Volume Control, from Lou Kretchek |
| 2000.10.24.09 | FS: 1958 Hardman Duo Player Piano, from Thomas Ahearn |
| 2000.05.11.11 | Help Identifying Baldwin and Hardman Actions, from Julian Brook |
| 1999.04.21.08 | Adding a Sustain Pneumatic to Hardman Duo, from Bryan Cather |
| 1999.04.13.10 | Hardman Duo & Imperial Industrial Co., from Douglas Henderson |
| 1999.04.12.16 | Seek Hardman Duo Information, from Bryan Cather |
| 1999.03.30.04 | Hardman 'Duo' Player Action, from John A. Tuttle |
| 1999.03.29.05 | Seek Wind Motor Slide for Hardman Duo, from John McClure |
| 1997.04.21.15 | Hardman Duo, from John A. Tuttle |
| 1997.04.20.10 | Repairing Hardman Duo, from Dave Fowler |
| 1997.04.05.11 | Hardman Duo Sustain, from Mark Van Essen |
| 1997.04.05.10 | Hardman Duo Sustain, from Don Teach |
| 1997.04.04.09 | Hardman Duo Sustain, from Bryan Cather |
| 1996.12.28.02 | Need Hardman Duo Repair Book, from Bryan Cather |
| 1996.12.08.05 | Hardman Duo, from Bryan Cather |
| 1996.11.24.02 | Re: Hardman Duo, from Bill Maxim |
| 1996.11.22.08 | Hardman Duo ?, from Bryan Cather |
 |