My 56 is Officially a 66 :-(

[LouiseM]

If the chassis number difference is simply a couple of transposed numbers or letters, then yes I agree - easily sorted out. But if a completely different number then it suggests a ringer.........

As already stated Roy, in this case the numbers are the same but two letters have been transposed.

[bmcecosse]

Oh right - that's easy then - I had that on my own car at one MOT - the garage mixed up two letters and then I had a nasty letter cancelling the MOT certificate and insisting I take the car back to the garage for retesting.......
Still doesn't excuse the issuing of a certificate confirming a car is a 1966 model when it is clearly a much earlier version........