I googled some more for ya... even found your post on another site. I'm guessing it's missing parts. If you have your heart set on using it, you'll need to add a regulator on the outside and a burner on the inside (to go gas). Or use it with coal/wood as is.
Personally I'd save the weight and the trouble and go with a smaller newer stove. Doesn't have to be a spendy stainless one, even a portable coleman would work. If you want it in the boat for looks/nostalgia, and you're handy, I'd buy a coleman portable stove, gut it, and put the parts in this thing. Plum it so the burners are up top, and figure out a way to mount the knobs. It would be more efficient that way.