- 13:19, 17 May 2010 diff hist +117 Elliott Brothers
- 13:12, 17 May 2010 diff hist +67 Elliott Brothers
- 13:07, 17 May 2010 diff hist +3 Elliott Brothers
- 13:05, 17 May 2010 diff hist +136 Elliott Brothers
- 12:59, 17 May 2010 diff hist +162 m Elliott Brothers
- 12:51, 17 May 2010 diff hist +82 m Elliott Brothers
- 12:46, 17 May 2010 diff hist +36 Elliott Brothers
- 12:42, 17 May 2010 diff hist +172 Elliott Brothers
- 12:08, 17 May 2010 diff hist +11 Elliott Brothers
- 12:06, 17 May 2010 diff hist +63 Elliott Brothers
- 12:05, 17 May 2010 diff hist +168 Elliott Brothers
- 11:21, 17 May 2010 diff hist +77 Elliott Brothers →Sources of Information
- 11:20, 17 May 2010 diff hist +99 Elliott Brothers
- 11:08, 17 May 2010 diff hist −37 Elliott Automation Name changed and link to Elliott Bros added
- 11:04, 17 May 2010 diff hist +1,087 Elliott Brothers additional information from National Archives, especially on early history
- 11:31, 15 May 2010 diff hist +39 m Plessey Co
- 11:22, 15 May 2010 diff hist +4 m Ferranti
- 11:18, 15 May 2010 diff hist +1 m Plessey Co
- 11:16, 15 May 2010 diff hist 0 m Plessey Co
- 17:52, 11 May 2010 diff hist +11,009 Plessey Co Edit and addition to original page is to be found below the heading TEST