"At the end of the day we come down in favour of extending the time for appeal in this case. The decisive factor in our decision is that unless time is extended it appears that there is at least a possibility that a judgment will have been obtained on the basis of facts which were misleading. Doing the best we can to balance all these factors in this very unusual case, we think it is appropriate to extend the time for appeal. However, we must make it clear that this decision is not a charter simply to ignore the Industrial Tribunal and seek to come her and re-open the matter. In the ordinary way, a union which has decided not to take part before the Industrial Tribunal will have little chance of having time extended on a later change of mind. Our decision in this case is limited to the very special facts of this case."