| Digest Nr | Subject and Author |
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| 2023.11.02.03 | FS: Regina 15-1/2" Double Comb Music Box & 14 Discs, from Bill Zuk |
| 2023.06.25.02 | FS: Lot of 22 Piano Rolls & Double Piano Stool, from Robert Hanulec |
| 2022.04.15.01 | Seek Double Comb 15-1/2" Tabletop Regina, from Daniel Davis |
| 2021.10.02.03 | FS: Mira 15.5" Double Comb Disc Box in New York, from Doug Olds |
| 2021.06.08.01 | Reiterating Double Beater Drum Mechanism, from Ralph Schultz |
| 2017.09.21.01 | Paul Eakins' Mills Double Violano Virtuoso, from Tim L'Amoureux |
| 2017.09.20.04 | Paul Eakins' Mills Double Violano Virtuoso, from Dale F. Rowe |
| 2017.09.19.05 | Paul Eakins' Mills Double Violano Virtuoso, from Tim L'Amoureux |
| 2017.09.17.05 | Paul Eakins' Mills Double Violano Virtuoso, from Karl Schroeder |
| 2017.08.31.01 | Paul Eakins' Mills Double Violano Virtuoso, from Karl Schroeder |
| 2017.01.19.04 | Seek Valve Stems for Double Valve Action, from Lance Reed |
| 2016.11.09.02 | FS: Stella Grand Console Double Comb Music Box, from Darleen Stewart |
| 2016.02.19.07 | Seek Replacement Double Valve Stack, from Luke Myers |
| 2014.10.10.07 | Standard Pneumatic Double Valve System, from S. Lee Walker |
| 2014.09.16.05 | Seek Mills Violano-Virtuoso with Double Violins, from Tony Marsico |
| 2013.10.16.02 | Wood Valve Buttons in Standard Double Valve Action, from Art Reblitz |
| 2013.10.15.06 | Wood Valve Buttons in Standard Double Valve Action, from Tim Gautreaux |
| 2013.10.13.02 | Wood Valve Buttons in Standard Double Valve Action, from S. Lee Walker |
| 2013.10.12.03 | Testing a Standard Pneumatic Double Valve Action, from S. Lee Walker |
| 2012.09.04.01 | Double (Duplex) Roll Frames on Carousel Organs, from William Edgerton |
| 2012.08.31.07 | Grand Piano Truck Dolly for Double Leg Ampico, from John Dewey |
| 2011.03.06.06 | FS: Wurlitzer 88-note Double Spool Box Assembly, from James Williams |
| 2010.11.08.03 | Symphonion Double Disc Musical Box, from Marcus Pregler |
| 2010.01.28.10 | Ampico Double Valve System Operation, from Darryl Zempel |
| 2009.09.25.02 | Seek 82-note Artizan Style Double Roll Frames, from Robert Loeffler |
| 2008.02.05.07 | Rebuilding Double Valve Standard Player Action, from Neil Davidge |
| 2007.07.05.05 | " Double in Brass", from Ed Hattrup |
| 2007.05.09.04 | Double Bellows Roll Tracking Unit, from Maury Willyard |
| 2007.05.03.07 | Seek Double Bellows Roll Tracking Unit, from Maury Willyard |
| 2006.08.31.01 | Double Comb Symphonion Disc Musical Box, from Pat Nelson |
| 2005.01.26.15 | Seek Mills Violano-Virtuoso with Double Violins, from Douglas Heffer |
| 2004.11.23.13 | Primary Valves Bypassed in Double Valve Player, from John A. Tuttle |
| 2004.11.21.02 | Primary Valves Bypassed in Double Valve Player, from John Bushey |
| 2004.01.21.07 | Seek Voltage Regulator for Mills Double Violano, from Ken Rubin |
| 2003.11.17.01 | Seek Discs for Symphonion 10-5/8" Double Comb, from Karl Petersen |
| 2003.10.16.01 | Double Combs in Musical Boxes, from Jim Heyworth |
| 2003.10.15.01 | Double Combs in Musical Boxes, from David Sharpe |
| 2003.10.11.01 | Double Combs in Musical Boxes, from Jim Heyworth |
| 2003.10.09.01 | Double Combs in Musical Boxes, from Mili Rowden |
| 2002.12.18.17 | Single or Double Valves in Street Organs, from Nicholas Simons |
| 2002.12.18.16 | Single or Double Valves in Street Organs, from Christofer Noering |
| 2002.12.13.05 | Double Valves for Busker Organ, from Ron Ginger |
| 2000.03.14.03 | Seek Double Valve Autopiano Player Stack, from Tim Baxter |
| 2000.02.16.01 | Double Disc Symphonion Music Box, from David Schump |
| 1999.11.03.04 | Double Valve Player Piano Systems, from Craig Brougher |
| 1999.11.02.18 | Double Valve Player Systems, from Andrew Barrett |
| 1999.10.25.15 | MIDI Keybed Contacts Record Double Note Strikes, from Andy Taylor |
| 1999.06.19.10 | FS: Double Disc Music Box Movements, from Brian Chesters |
| 1997.12.24.03 | Double Negatives, from Todd Augsburger |
| 1997.08.29.11 | FS: Double Mills Violano & Artizan C Band Organ, from Bill Black |
| 1997.06.07.03 | Virtuoso Violin (not the Double Mills), from Bill Ryan |
| 1997.03.02.14 | Rebuilding Standard Double Valve Action, from Marc Finlen |
| 1996.11.09.08 | Double Faced Palace Organ, from John Poling |
| 1996.05.29.03 | The Great Double Space Quandary, from Keith Nealy |
| 1996.01.06.05 | Double Pianos, from Gordon Rumson |
| 1995.10.30.04 | Re: Single Valve .vs. Double Valve, from Robin Pratt |
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