Thanks for posting that Iain. I was taken to see that as a child, indeed I grew up in Salford and my Dad was a BT Police officer on the docks. He once took me on an informal walkabout, I don't imagine a uniformed officer would be allowed to take his child to work nowadays. I vividly remember seeing huge ships very close up, also being taken right up to the steam locos that were still working the docks in those days (the early '60's), I remember being terrified of them!
My favourites were the self-propelled steam cranes, with their corrugated iron sheds, that drifted about the place wreathed in escaping steam.
I could lie in bed at night and hear the endless shunting going on, the remote thumping of a giant steam hammer and, when it got light, the chorus of factory and mill whistles going off. It seems like another world, now.
No wonder I've loved railways and boats all my life.
Regards,
John.