It was the same number, just on a larger, legal style plate.
We can buy a plate online to whatever style and size you want. But for the annual MOT we need a legal plate. When I bought the bike I bought a more aesthetically pleasing version as becomes the Speedie, and obviously still had the big ugly one it came with.
My normally lenient MOT guy said it might be a problem, so I got the original one and stuck it on, and my MOT guy was happy again.
So I guess your number plates are issued to the person and not the bike?