This is a Coats p/n 8112059 potentiometer assembly for the IBS 2000 wheel balancer. This is new old stock, it's been sitting on a shelf in my garage for at least 26 years. My dad was the Coats factory service center in the Central Florida region from '97-'04 and the only price book I can find is from 2000. It shows 8112059 was superceded to 8112502 potentiometer, distance, A. So I know this part was made prior to 2000. I have no idea how many IBS 2000's are still around, but I'm guessing there are still a few. I found one of these listed online for $291.