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It is difficult to underestimate the fast pace at which the plant equipment changed. While the process remained fundamentally the same, it was evolving very rapidly here, and throughout the industry. On initial examination aerial images seem to show the same layout but the final evolution of the works was far different to how it began. 

I was surprised at the pace of change when I first started my research, and there is a lot to take in, making it especially tricky for those unfamiliar with the process. I will try to explain things without getting too technical.  

I hope I have succeeded and that you find it interesting, there is more to come.

Phil Baggley.