| Digest Nr | Subject and Author |
 |
| 2020.10.21.04 | Unidentified Wallbox, from Chris Galantine |
| 2020.10.21.03 | Unidentified Wallbox, from Dave Bowers |
| 2020.10.19.02 | Unidentified Wallbox, from John Haskey |
| 2019.11.04.02 | Unidentified Duo-Art Roll of "Black Bottom", from Peter Phillips |
| 2015.07.25.01 | Unidentified Tunes on Wurlitzer 165 Music Rolls, from Matthew Caulfield |
| 2007.08.24.02 | Unidentified Songs on "A" Rolls, from Jack M. Conway |
| 2005.07.27.04 | Old Book Music for an Unidentified Instrument, from Jan Kijlstra |
| 2005.07.27.03 | Old Book Music for an Unidentified Instrument, from Christian Greinacher |
| 2005.07.26.04 | Old Book Music for an Unidentified Instrument, from Christian Greinacher |
| 2005.07.26.03 | Old Book Music for an Unidentified Instrument, from Vincent Morgan |
| 2005.07.26.02 | Old Book Music for an Unidentified Instrument, from Renaissance Le Corbeau |
| 2005.07.25.01 | Old Book Music for an Unidentified Instrument, from Bjorn Isebaert |
| 2001.10.09.02 | Unidentified Tune On A 70-Key Hooghuys Fair Organ, from Bjorn Isebaert |
| 1998.06.04.06 | Unidentified Holes in Pinned Barrel, from Hans van Oost |
| 1998.06.03.03 | Unidentified Holes in Pinned Barrel, from Bob Fitterman |
| 1998.06.02.03 | Unidentified Holes in Pinned Barrel, from Hans van Oost |
| 1998.06.02.02 | Unidentified Holes in Pinned Barrel, from D. L. Bullock |
| 1998.06.01.06 | Unidentified Holes in Pinned Barrel, from Bob Fitterman |
| 1996.07.04.03 | Unidentified Orchestrion, from Terry Smythe |
 |