All changes to tower
| Date | Change | Source |
|---|---|---|
| 16 Aug 2023 | Toilet added | Neal Dodge |
| 13 Aug 2022 | Fr1: layout amended; Fr1A: layout added | Ranald Clouston papers via Neal Dodge |
| 12 May 2017 | 1-8: frameid added; frame info added | Philip Denton via 00012141 |
| 21 Sep 2012 | 1-8: turning added; 5: canon info amended | Andrew Higson via 00010077 |
| 13 Oct 2011 | 5: historically important | David Knight via e-mail |
| 5 Mar 2007 | Tenor nominal added (F-1c) | Andrew Higson via pNBR |