Well worked out WHBM. S'land is indeed an abbreviation of Sunderland.
Why blow my top about someone making a genuine error? I have made a great many in my life and will make a great many more in the future.
V2-OMG!:
I agree about the different standards (although the last time I flew a cheap airline at Christmas I do not remember even a paper plate), but almost everyone in the developed world can afford to fly. A very different situation from the "silver service" days of yore.
It would be interesting to see the memorial plate.