In browsing through some historic photos from the World War II battle of Saipan, I came across this photo of the little Japanese locomotive used to pull the harvested cane in from the fields to the sugar refinery at Garapan on the island. I cropped it a bit to remove the dead Japanese soldier that was in the foreground. This photo is of the same locomotive in service before the war. And finally a photo I took while visiting Saipan in 1967 of the locomotive stuffed and mounted beside the road in Garapan.
O&K: Probably this model. https://en.wikipedia.org/wiki/Orens...der-Lokomotive,_110_PS,_1435_mm,_17500_kg.jpg
After the Spanish American War when the United States took over Guam, the Philippines and Puerto Rico, Spain sold most of the rest of its Pacific possessions to Germany. During WWI, Japan was one of the Allies at war with Germany and took over those German islands. They probably got that little locomotive along with their new "colonies" as a spoil of war.