| Digest Nr | Subject and Author |
|---|
 |
| 2023.08.06.01 | Types of Ampico 'A' Systems, from John A. Tuttle |
| 2019.06.12.04 | FS: Musical Box Discs, All Types, from Kevin McElhone |
| 2018.04.12.03 | FS: Kalliope 13-1/4" (34 cm) Discs, 3 Types, from Kevin McElhone |
| 2013.04.01.05 | Types of Wurlitzer Music Roll Paper, from Dave Krall |
| 2009.01.26.01 | Music Roll Types and Compatibility, from Stan Harrison |
| 2007.03.26.06 | Strength of Common Glue Types, from John Dewey |
| 2004.04.01.06 | Piano Roll Compatibility & Roll Types, from John A. Tuttle |
| 2004.01.29.04 | Types of Self-Playing Organs, from Christofer Noering |
| 2004.01.27.01 | Types of Self-Playing Organs, from John Page, UK |
| 2004.01.26.04 | Types of Self-Playing Organs, from Ingmar Krause |
| 2004.01.26.03 | Types of Self-Playing Organs, from Frank Metzger |
| 2004.01.25.04 | Types of Self-Playing Organs, from Ingmar Krause |
| 2004.01.25.03 | Types of Self-Playing Organs, from Kevin McElhone |
| 2004.01.25.02 | Types of Self-Playing Organs, from Christofer Noering |
| 2004.01.24.03 | Types of Self-Playing Pipe Organs, from John Page, UK |
| 2002.11.21.09 | Types of Yamaha Disklavier Pianos, from Don Teach |
| 2000.05.18.06 | Recordo Player Action Types & Aria Divina, from Bob Billings |
| 2000.01.05.09 | Types of "Mandolin" & "Banjo" Piano Attachments, from Hal Davis |
| 1999.08.21.07 | Different Types of Glass Armonicas, from Craig Smith |
| 1999.05.13.06 | Player Mechanism Types in George Steck Pianos, from John A. Tuttle |
| 1998.02.04.17 | Types of 65-note Roll Players, from Hal Davis |
| 1998.01.22.13 | Types of Hupfeld Vorsetzers, from John Phillips |
| 1998.01.20.04 | Types of Hupfeld Vorsetzers, from Rod Cornelius |
| 1998.01.07.08 | Types of Peerless Rolls, from Don Teach |
| 1997.02.21.10 | Types of Standard Player Action, from John A. Tuttle |
|
