"So when you spot violence, or bigotry, or intolerance or fear or just garden-variety hatred or ignorance, just look it in the eye and think... The good outnumber you, and we always will." Patton Oswalt
I've seen them but couldn't even hazard a guess as to what they would be original on. But they sure do solve the problem of where to flop the belts when not in use. Convenience, plus.
For what it's worth if anyone is interested,here's a post from 'Chevelle Tech' from many years ago discussing the question whether Chevelle consoles came with clips.
They're talking Chevelles on the post,not Beaumonts,so the question still isn't answered for Beaumont owners.