The Trav is a late, Adderley Park car and as such came with a steering lock fitted - this steering lock also controls the ignition. Can anyone please please please tell me how to wire this little brute. Someone

It doesn't really help that the pins aren't numbered or labelled in any way. Any assistance would be appreciated - a photo of the back of the lock for example would be really helpful.
And because I am a complete numpty with the electrics please don't suggest I get a multimeter across the terminals to check where the wires should go as I have no idea!