Steinway Heltzel's Attribute History
| Attribute Type: |
|
| Date | Attribute Value |
| 28/09/2054 | 478 |
| 17/07/2054 | 469 |
| 17/04/2054 | 462 |
| 17/01/2054 | 455 |
| 03/08/2053 - 17/10/2053 | 449 |
| 20/04/2053 - 17/07/2053 | 441 |
| 19/01/2053 - 17/04/2053 | 432 |
| 20/10/2052 - 17/01/2053 | 423 |
| 04/08/2052 - 17/10/2052 | 417 |