I’ve had a quick flick through AP4306A – Data Book Of Ground Servicing Equipment. This particular copy seems to have been printed in the early ’60’s but covers a lot of equipment going back to the ’40s and probably earlier. I paid attention to anything apparently using a petrol engine. Nothing at all powered by a Triumph twin (or any Triumph engine for that matter).

Looking at the photos, aren’t I seeing matt green paint? Isn’t that a clue as to it’s origin?