| Digest Nr | Subject and Author |
|---|
 |
| 2023.03.28.02 | Hardman Duo Valve History, from David Oppenheim |
| 2021.10.05.01 | Restoring a Hardman Peck Welte-Mignon Piano, from Dave Allan |
| 2020.04.16.07 | FS: Hardman Welte-Mignon Player In Pennsylvania, from Wayne Lincoln |
| 2020.03.11.02 | Value of Hardman Peck "Duo/Art" Player Piano, from David Oppenheim |
| 2020.03.10.01 | Value of Hardman Peck "Duo/Art" Player Piano, from David Dewey |
| 2020.03.09.03 | Value of Hardman Peck "Duo/Art" Player Piano, from Ross Schacher |
| 2018.12.23.01 | Holiday Greetings From a Hardman Duo Art, from Ben Gottfried |
| 2018.08.15.05 | Hardman & Peck Autotone Soloelle Player System, from John A. Tuttle |
| 2018.08.13.03 | Hardman & Peck Autotone Soloelle Player System, from John A. Tuttle |
| 2018.07.31.03 | FS: Hardman Welte-Mignon Reproducing Piano, from Wayne Lincoln |
| 2015.06.15.07 | FS: Parts from 1955 Hardman Duo Player Piano, from James Williams |
| 2013.11.09.02 | Seek Sustain Pedal Pneumatic for Hardman Duo, from Tom Bodkin |
| 2013.04.07.05 | Autotone Player Piano by Hardman Peck & Co., from Jan Kijlstra |
| 2012.12.15.04 | FS: Hardman Duo in Huntingdon, Pennsylvania, from Jules Shaffer |
| 2012.07.12.01 | FS: Two Hardman "Duo" Player Pianos in Michigan, from Kel Geiger |
| 2010.09.13.19 | FS Free: Hardman DuoArt Spool Box Assembly, from Jon Page |
| 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 |
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