| Digest Nr | Subject and Author |
|---|
 |
| 2023.04.02.03 | Doyle Lane Plastic Unit Valve Idea Booklet, from Jim Marke |
| 2023.03.31.02 | Doyle Lane Idea Booklet, from John A. Tuttle |
| 2021.07.14.01 | Seek Booklet "Operating The Pedal Duo-Art", from John A. Tuttle |
| 2021.05.28.01 | Seek Booklet "Instructions for Calliaphone", from Don Taig |
| 2017.04.27.01 | Booklet "Fotoplayer, Voice of the Screen", from Joe Berman |
| 2017.04.26.01 | Seek Booklet "Fotoplayer, Voice of the Screen", from Bruce Pier |
| 2017.04.25.01 | Seek Booklet "Fotoplayer, Voice of the Screen", from James Huffer |
| 2014.09.09.03 | Seek QRS Educator Rolls Booklet, from Barry Batezel |
| 2010.09.09.02 | Seek Original Tangley Calliaphone Booklet, from Chris Carlisle |
| 2007.08.13.03 | Seek Knabe Piano Endorsement Booklet, from Kurt Morrison |
| 2004.12.22.02 | Booklet "Reproduco Piano-Organ Instructions", from Bob Stewart |
| 2004.08.25.03 | American Photoplayer Co. Booklet, from Michael Roseboom |
| 2003.06.04.02 | Seek Booklet On Care of Disc Musical Box, from Michael Pawelek |
| 2000.07.06.09 | PPCo Booklet "Player Action Identification", from Howard Wyman |
| 2000.02.12.05 | Booklet "How to Build a Simple Mechanical Organ", from John Kleinbauer |
| 1998.12.21.02 | Booklet on Reginald Reynolds, from Julian Dyer |
| 1998.12.19.05 | Booklet on Reginald Reynolds, from Malcolm Cole |
| 1998.04.28.03 | Booklet for Building a Barrel Organ, from John Kleinbauer |
| 1997.10.23.12 | Pianolist Instruction Booklet, from Dan Wilson, London |
| 1997.10.23.11 | Pianolist Instruction Booklet, from Karl Petersen |
| 1997.10.23.10 | Pianolist Instruction Booklet, from Larry Lobel |
| 1997.10.22.10 | Seek Pianolist Instruction Booklet, from Tim Baxter |
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