All changes to tower
| Date | Change | Source |
|---|---|---|
| 9 Apr 2013 | PN info added | JCB (from IACR website) via www |
| 1-8: frame id added; 3-8 canon info added; frame info added | David Kelly via e-mail | |
| 15 Nov 2010 | URL removed | JCB via URLbad |
| 4 Jan 2006 | Slight change to GR (from S503563) | Tim Jackson (Irish coords list) via e-mail |