All changes to tower
| Date | Change | Source |
|---|---|---|
| 10 Sep 2017 | 1-7: diam added; 8: diam amended | David Sloman via 00012412 |
| 1-8: frameid added; frame info added | John Baldwin via database | |
| 8 Nov 2004 | Tenor nominal supplied, so note is NOT E (nominal=F-49c) | Bill Hibbert via e-mail |