While I've seen photos of these before, I have nothing of value to offer vice the provenance, sorry.
Meanwhile, have you a clue regarding displacement? Is the carb mounted on the back of the engine? With known displacement, figuring out a suitable carburetor becomes easier (if you intend to run it). Value? Honestly, this is a squishy kind of thing, in my opinion. Why? It's because absent ignition and carb, box, packing, and manual, it's not considered original to collectors - but - based on my experience with engines that are sought after, e.g. Morton M-5, and others, we're still not talking sell-it-and-retire kind of money. More like pocket change for most folks.
Anyway, it's certainly a nice conversation piece and there's every reason to believe you can make it run if it has compression. Noting the fact it's sand cast, I'd expect there are a fair number of them in the world. Last thing, while displacement can be calculated to a fair-thee-well with disassembly, merely sticking something through the exhaust port and getting an approximate diameter is going to get you in the ballpark in terms of selecting a carburetor because most 2-cycle engines are reasonably close to square (bore and stroke). Close enough, that is, for it to run and throttle reasonably well - just compare the cylinder diameter to available engines and easy peasy, you're there!
Regarding the ignition, it's likely any two-cylinder module will work, e.g. something for a DLE, DA, etc. Especially as it looks like the pickup can be replaced easily enough and positioned for where whatever module you use wants it (in the vicinity of 20-25° BTDC usually). Is it alternate firing or simultaneous? This will matter.
Craigslist? I've seen them pop up occasionally here (Orlando) but haven't been sufficiently motivated to obtain one. Anyway, it looks like fun . . . good find!