All changes to tower
| Date | Change | Source |
|---|---|---|
| 14 Mar 2018 | PN sharing arrangement with Hathern made explicit | Izabelle Bimson via e-mail |
| 12 Mar 2018 | PN info added | Izabelle Bimson via e-mail |
| 15 Dec 2011 | 1-6: turning, frame id added; frame info added | Andrew Higson via 00009807 |
| 27 Feb 2007 | Tenor nominal added (Ab+11c) | Andrew Higson via pNBR |