In May, 1909, Wayland W. Magee was in the Philippines, managing a fleet of Stanleys for a few months, as he worked through his low-cost 14-month tour of the world. He received an assignment to haul a group of engineers on an exploration of all the roads of the southern islands, and he fitted out a Mountain Wagon for the job. The article he wrote on his trip includes this nice view of a 3-nozzle burner - plus a great action shot of an amphibious Mountain Wagon.
Magee fording the river could not be good for its hot cast iron burner plate. Maybe they blocked off the burner's venturi before hitting the water? After shutting off the main fuel, I can steam two miles on level ground before the boiler is out of steam pressure. Maybe he did the same. Fantastic photos.
Take a look at the movie "Rascal" if you haven't seen it - Model 62 #5967 does a bunch of dirt track racing and ends up driving headlong into a pond. I was sure that Ray Nelson must have charged the movie company for a burner after that little escapade.