It's an Evra 190 sold by Hobby People.
It's a Ryobi 31cc made for RC use with some improvements over the stock weed-wacker engine. It came with the prop adapter, a different case with beam mounts, dual ring piston, a different carb and a special muffler and engine mount.

I have some Ryobi conversions and I have an Evra190 that I converted to electronic ignition and did some other work to it. The 190 ran fine stock and would be good for a warbird or a scale plane. You can get some good power from it with some modifications but compared to todays 30cc engines it's not as powerful in stock form.