| Digest Nr | Subject and Author |
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| 2007.09.13.03 | Retro-fitting Ragtime Automatic Music Co. Units, from Kim Bunker |
| 2007.03.16.11 | Replicating Wurlitzer Quad Valve Units, from D. L. Bullock |
| 2006.10.08.02 | New Coinola Stacks and Pneumatic Units Made, from Brian Thornton |
| 2005.01.04.11 | Seek Drawings of Ampico A Expression Units, from Duaine Hechler |
| 2004.10.11.09 | FS: Reproduction Seeburg Percussion Units, from Stephen Kent Goodman |
| 2004.06.04.05 | FS: Foot Pump Units and Dynavoice Keytop Player, from Joshua Rapier |
| 2004.05.17.03 | Seek Duo-Art Fan Accordion Expression Units, from Bruce Grimes |
| 2003.09.26.03 | FS: Suction & Blower Box Units, from John Neiswinger |
| 2003.04.05.04 | Ampico Wind-Chest Spill Units, from D. L. Bullock |
| 2002.09.29.04 | Seek Ampico A Crescendo Units, from David Winkelblech |
| 2001.10.20.02 | Electric Suction Units, from Russ Doering |
| 2001.10.18.03 | Availability of Lee Suction Units, from Bob Baker |
| 2001.10.17.03 | Electric Suction Units, from Phil Dayson |
| 2001.09.09.12 | Engineering Units Of Pressure, from Nicholas Simons |
| 2001.09.07.07 | Engineering Units of Pressure, from Michael Taylor |
| 1997.10.14.14 | Electric Suction Units, from Hal Davis |
| 1997.09.05.13 | Units of Measure, from Rob Goodale |
| 1997.08.14.12 | FS: New Shaffer Player Units, from Bob and Sonja Lemon |
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