http://www.scribd.com/doc/68803068/Weld ... ts-UK-1948
The report details German welding techniques and processes and includes quite a few pictures of tanks in various stages of manufacture.
Interesting to read between the lines in the opening section that the author seems quite envious that the Germans let engineers run their technical committees, but also that he felt they sometimes came to the wrong decisions

With thanks to the original poster.
Adrian.