Yes, Richard:
Sorry, I thought we had already decided it was in all probability a Leader. The site only has around 120x150 size photos and blowing it up loses a bit. But, I have seen also period adverts etc. and I am quite certain that is what we have here.
Now, if we can just find out any more info about this purchase and if there were other tests carried out on other trucks.
Always wishing for more
Cheers
Bill