The most recent submissions are listed first.
| Digest Nr | Subject and Author |
 |
| 2008.08.18.02 |
Rudolf vs. Rudolph Player Piano in Canberra, from Neil Stevenson |
| 2008.08.06.08 |
Rudolf Piano Company in Pierce Piano Atlas, from Jack M. Conway |
| 2008.07.31.02 |
Rudolf Player Piano in Canberra, from Neil Stevenson |
| 2008.07.28.05 |
Rudolf Player Piano in Canberra, from Neil Stevenson |
| 2000.01.23.03 |
42-Key Organ by Rudolf Bruns of Berlin, from Ralph Schack |
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