Nice how did you get the building plans of what each shed did? btw the colour star changing building to the far right on the side strip contains around 3 sections each with a blast wall separating them, do you know what each part of this building did?
I had the pleasure of interviewing Alan Wells (the last family director of the company) a couple of weeks ago. Although Alan is now 82, his memory is crystal clear about the factory.
I'll see if I can find out the details you mention...