I've had this for over 20 years, and someone just identified it for me a couple of days ago.
Think I'll clean it up a bit and run it this summer.
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That's an old one
Be sure to get a video of the run
Interesting engine. Two-stroke, but was meant to run on straight gas through its Model T Holley NH carburetor (actually, the original Holley mixer is missing, but it was similar) and get its oil from an oiler mounted on the intake manifold. Think I'll use both mixed gas and the oiler, at least at first.
Oh, it uses a Model T NPT spark plug, too. I found a brand new one in a drawer, so I'm ready to go.
Update here.
I cleaned it up, but I can't run it till spring because SWMBO would have a bird, and justifiably so, if I fired it up in the basement.
I'll update later.
BTW, I know of only two of these engines in the whole world, mine and the one belonging to the guy who identified mine for me.
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Bob,
Looking good! As previously posted we want video.
Len.
Working on it, Len.
Come on, spring!
Working on it, Len.
Come on, spring!
Awesome engine.
What fuel does it use?
Have you run it in the past?
Nice work!!
Looks new
I will be here waiting for the video in the spring too
It's a two-stroke, Charlie. It uses mixed gas like the old outboards, but the oil is supposed to be provided to straight gas drop by drop by the oiler. I'm going to play it safe, at least at first, by running it on 20:1, just like in the good old days. I'll work on refining the mixture as I go.
Good looking job on the restoration - will be interesting to see it run.
Love the looks of that little thingie, great job cleaning that one up Bob !
Will certainly be looking forward to see it going as well 
Looks great as it sits there, but just out of curiosity, why did you choose to place it at that angle?
Would loose about 30% trust in a boat, having it pointing downwards like that, and the bearings (allthough capable of handling it to some extent) would be way less stressed, if the engine was leveled.
You're right, of course.
I wanted only a very slight angle, which is sometimes necessary in a small boat so that the prop clears the bottom of the boat. Many of these little guys used an angle chock, as they did not have a universal joint on the prop shaft.
https://www.ebay.com/itm/Inboard-Boat-Vintage-Engine-Mount-Angle-Chock-Block-5-25-L-1-25-Rise-57-1-CC-/254474604439I just wanted something to hold the engine while I was working on it, and my rough-and-ready approach gave me way too steep an angle. I'll fix it later, I guess, though the engine will never again be in a boat or have any appreciable load put on the bearings.
Does that make sense to you?
Oh. Here's my steam marine engine. Note that it sits at a slight (and reasonable) angle.
https://youtu.be/0r4wwpsiUyE