| Digest Nr | Subject and Author |
|---|
 |
| 2009.11.01.05 | Concrete Pianos by Thomas A. Edison, from Judy Wearing |
| 2006.02.15.10 | Phenoseal for Sealing Concrete, from Larry Mayo |
| 2004.06.27.12 | Concrete Pianos by Thomas A. Edison, from Andrew Barrett |
| 2004.06.24.05 | Concrete Pianos by Thomas A. Edison, from Kim Bunker |
| 2004.06.23.03 | Concrete Pianos by Thomas A. Edison, from Glen R. Perye Jr. |
| 2004.04.13.07 | Lauter Concrete Piano, from Arthur Marino |
| 2004.04.13.06 | Concrete Piano, from Christofer Noering |
| 2004.04.12.07 | Concrete Piano, from Mark Kinsler |
|
