All changes to tower
| Date | Change | Source |
|---|---|---|
| 28 Dec 2019 | 1-6: nominal added | Bill Hibbert via e-mail |
| 25 May 2019 | 1: diam added; 1-6: frameid,turning,canon info added; | John Baldwin via database |
| frame info added | John Baldwin via database |
| Date | Change | Source |
|---|---|---|
| 28 Dec 2019 | 1-6: nominal added | Bill Hibbert via e-mail |
| 25 May 2019 | 1: diam added; 1-6: frameid,turning,canon info added; | John Baldwin via database |
| frame info added | John Baldwin via database |