^^^I think it looks to be a better-built version of the score. Does it run as nice as it looks? Got any rough dimensions?
It's very precisely built and runs smooth as butter on air, now that I have un-seized it (it sat around for about 20 years, I think). I love the finish on the flywheel.
As for size, it's about the same as a Stuart Score (I have one).
Oh. Here's its sister engine, which looks like a 10V clone. Too bad about the screws and locknuts, is all.