The most recent submissions are listed first.
| Digest Nr | Subject and Author |
|---|
 |
| 2014.04.03.03 | 1913 Chickering With Prototype Ampico Player, from Perry Wingerter |
| 2004.05.16.01 | Prototype Expression Pianola of 1891, from Bill Prichard |
| 2003.03.10.05 | Prototype Organ Pipes of Cardboard, from Julie Porter |
| 2003.02.13.15 | Seek Repair of Pianomation Prototype, from Devon Hollingsworth |
| 2000.08.16.03 | Votey's Push-Up Pianola Prototype at Smithsonian, from Dan Wilson, London |
| 1997.12.17.24 | Melville Clark 1895 Prototype Player, from Dan Wilson, London |
| 1997.08.27.17 | Prototype Rolls and Pattern Rolls, from Wayne Stahnke |
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