| Digest Nr | Subject and Author |
|---|
 |
| 2015.03.31.03 | 1910 Krell Auto-Grand Piano & Werner Industries, from Luke Myers |
| 2014.11.06.01 | Primotone Musical Box by Brother Industries, from Jean Nimal |
| 2007.05.18.07 | Ludwig Industries Metal Stampings for Art Glass, from Walt Kehoe |
| 2007.05.17.10 | Ludwig Industries Metal Stampings for Art Glass, from Don Teach |
| 2001.07.23.02 | Cottage Industries Business Methods, from Mark Kinsler |
| 1999.01.28.12 | New Solenoid Player Action by Meisel Industries, from Don Teach |
| 1998.03.30.01 | Purchaser's Guide to the Music Industries, from Fritz Gellerman |
| 1998.03.28.02 | Purchaser's Guide to the Music Industries, from Ed Gaida |
|
