All changes to tower
| Date | Change | Source |
|---|---|---|
| 5 Dec 2017 | 1-6: turning,frameid added; 1,5,6: diam amended; frame info added | David Sloman via 00012628 |
| 16 Jun 2012 | 1-6: partials added | Philip Denton via 00009972 |
| 10 Aug 2005 | Exact tenor wt supplied (rather than app 9.75cwt) | Nick Bowden#55 via e-mail |