I have a Bing from a 1977 Maxi with 2510 miles of use. It's only good for parts. The needle is rough (tip is broken) and the cable tube is missing also there is a pin size hole in the bowl. I was going to rebuild it but since the bowl has a hole (hey that rhymes) I'm giving up! Would make a upgrade from a 12mm and comes with intake. I believe the bowls are interchangeable? $25 as is.