As I thought a mammoth task!
It's always a pity when office moves and the attitude of some folks results in the loss of or damage to magazines and the like.
For the last years of my employment I was a data manager and was fortunately able to save a lot of building/construction information from paper files before it got binned, usually before office moves and sort outs and able to extract useful data before they were finally destroyed and input into a property database.
I also saved a load of drawings which I personally collected and took to storage – 3 car loads. Idea was to catalogue them but couldn't find the time. Also thousands of house plans on microfiche. Dont know if they have survived.
Chris