Looking for K Motor Information

I have an engine that I have not been able to get any information on. There is no tag but “K Motor” is cast in the block. Engine weighs about 70 pounds, and it has a single cylinder and single flywheel. It probably is about 1/2hp with about a 3-inch piston.
A mag is connected directly to the back. Mag condenser has British, Canadian and U.S. patents of 1915 date. It is 4-stroke, water-cooled, with no governor.

There are two levers on the carburetor to adjust fuel and air. There are two spark plugs in head directly opposite each other. Whether there was an electrode and a ground originally or two plugs firing 3 inches apart, I do not know. Engine came to me from Chile. I suspect it might be British but don’t know. Any information would be appreciated.

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