According to my daddy, that was the measure of class... it was either a "3-holer" or the pinnacle "4-holer". We only had a 1953 3-holer. That was in about 1957. We later upgraded to a 1955, but still only a 3-holer.I think my first car was a Buick. I remember it had "holes in it's sides" Similar vintage to that one.