I took a look through the AMEE book and I didn't spot any engine that looked like that engine depicted. So if it isn't in the AMEE then it is either a modern replica engine or it is a foreign non-USA made engine. But I did skip over the big brand engines, like OK, McCoy, O&R, FOX and K&B though. So I could have missed it. Some schools here in the USA did make a some replica and reproduction engines in the past too. But some others were known to make replicas or repro engines too. They could have made it as well. Since some people in foreign countries, Australia, UK, France, Czechoslovakia, Bulgaria, Ukraine (Russia), Germany, Austria, Italy and others make engines too. It could be something that they had done.