Original Colossus Photos.

Can anyone please point me to a high quality (preferably internet) source of 
the five or six photographs of Colossus that survived the war? I mean the 
ones that Tony used to start his reconstruction.

Searching on the internet I can find much clipped poor quality copies of 
copies of copies, but nothing else.

Were the bombes and other items photographed or did those reconstructions 
all come from memory?

Robert.