This engine was built sometime between 1913 & 1916, and is of the "hot-head" design, operating on the high pressure principle, fuel injected under pressure. The heat of the combustion chamber together with that from the compression of the air, ignites the oil which burns, creating pressure that drives the piston.  Will operate on crude oil, fuel oil, gas oil, "solar" oil, stove oil, engine distillate and kerosene.  It has no carburetor, mixer, timer, spark plug or magneto.  It can be started by hand or with a special starting arrangement.  This engine was located by Gary Beaver Island in 1979, found on the beach half buried in sand.  It was used to power a dynamo producing electricity for the lighthouse before the advent of electric power on the island.  It was then relegated for a time to power a saw mill .