Three pointed scraper--was either in private hands?

Hard to describe this 356B -based LeMans car. Nose like RS61. Curved tail like modern Boxster, Roof like Ferrari 250LM. The name must come from fact it looks like German window scraper (for getting snow off your car, for you SoCal folks). Since there were only two I think they would be million dollar cars at the right auction but can't find any mention they ever sold them off. Basically they were just placeholders until the 904 could be developed. I think Porsche has shown them at recent events so now they will never sell them...