| Digest Nr | Subject and Author |
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| 2015.06.15.03 | Coinola C Models CX, CF, C-2, from Don Teach |
| 2010.12.21.02 | Identifying Disc Musical Box Models, from Angelo Rulli |
| 2010.12.15.05 | Identifying Disc Musical Box Models, from Nancy Fratti |
| 2010.12.15.04 | Identifying Disc Musical Box Models, from Matthew Caulfield |
| 2010.12.14.02 | Identifying Disc Musical Box Models, from Richena Holbert |
| 2006.08.31.02 | Mid-size Pedal Player Organs - Floor Models, from Gregory Filardo |
| 2005.06.27.04 | Seeburg L Cabinet Piano Models, from Art Reblitz |
| 2005.04.27.11 | Ampico Spinet & Studio Models, from Don Teach |
| 2005.03.22.04 | Features of Different Yamaha Disklavier Models, from Bob Gonzalez |
| 2002.09.02.07 | Conn Strobotuner Models, from Bill Black |
| 2001.02.22.08 | Wurlitzer Player Piano Models 1202 & 1203, from John A. Tuttle |
| 2001.02.04.02 | Kimball Electromatic Models C & D, from John A. Tuttle |
| 2001.01.22.07 | PianoDisc Models, from Rob Goodale |
| 2001.01.21.06 | PianoDisc Models, from Jim Moore |
| 2000.04.29.01 | Steinway Piano Models, Large and Small, from Randolph Herr |
| 2000.03.01.03 | Book "Making More Wooden Mechanical Models", from Joyce Brite |
| 1997.08.14.03 | "Working Models" and "Automatic Pleasures", from Michael Woolf |
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