I bought a dune buggy frame a few weeks ago, and it came with a bunch of parts. I'm trying to sell what I won't need. (An old beetle heater and this so far) But it's hard to put something up for sale without knowing what it is.

It's got no serial marks on it whatsoever, all is has is MIC put on the right and middle carbs, and Japan on all three. I've figured out enough to know that it should be Mikuni, but searching for Mikuni triple carbs doesn't turn up much, and nothing that looks like this. Any help I could get would be appreciated, as I need the money for the earlier mentioned dune buggy.