Newcastle Station - an unscheduled stop

I have a confession to make - I got on the wrong train at Edinburgh (an hour earlier than the one I was booked on) but got away with it. However, I changed at Newcastle and waited for the right train in case my luck ran out. So here is a memento from this journey - I wouldn't have seen this plaque if I'd been on the right train to begin with.

In case the text is a bit small, it says: "This plaque celebrates the 150th anniversary of the station, opened by Queen Victoria on 29th August 1850 and built by the York, Newcastle and Berwick Railway. It was designed by John Dobson, Architect and Robert Stephenson, Engineer. The portico on the north facade, designed by Thomas Prosser, Architect, was added by the North Eastern Railway in 1860. The train shed roof was extended southwars in 1893 to the design of William Bell, Architect."