Can you give me a steer to find DCW’s 50/60s achive? You mentioned another aviation forum but I can’t find it on any of the links you mentioned

This might help,
http://forum.keypublishing.com/search.php?searchid=4615595
If not, enter ‘1950’s / 1960’s archive part ??:’ in the Historic Aviation search box.

Viscount, no worries about the info, just quoting from the most comprehensive Canberra book, thanks for your PM and link to the other site.
James