All changes to tower
| Date | Change | Source |
|---|---|---|
| 5 Dec 2011 | 1-5: frame id added; frame info added | John Baldwin via database |
| 30 Dec 2010 | 2: precise wt supplied | Chris Pickford via 00009037 |
| 3 Mar 2005 | Tenor nominal added | Dave Kelly's analysis of Bob Parker recording via e-mail |