Many thanks for all of your replies, I think it does look like the master socket was the socket we took off of the wall, here are photos of the remaining box:
http://s1081.photobucket.com/albums/...niellejwilson/
If so, is possible to connect a new cable from outside to this socket? Any idea how much time this would take (quotes i have recieved have been in hourly rates)?
Thanking you in advance.