Yeah, I'll agree with Greg.
It appears to be a stove that they built and primarily marketed to the RV industry, and used in their own brand RVs. I came across a similar cooktop with an added lid that is a very similar design to yours. It was included in pictures of a 2000 Coleman Fairview popup. The sheet metal appears to be stamped from a slightly modified version of the die used to stamp your stove.
There is also a picture of a 2 burner version in an advertisement of one that was removed from an old Boler.

The lack of information about them is probably because their availability to the general public was rather limited.