We've been chucking stuff out. A move to new offices next year with agile working means we need to be prepared. Nature abhors a vacuum, so over 42 years we accumulated stuff which had eight-and a-half times the height of The Shard.
It's a bit like clearing the attic. Every now and then you pick up something interesting, like the Newark DC publication A Statement of Problems from 1974. A cursory glance at this analysis suggests problems haven't changed much over 40 years.