J R Training Ball
I was photographing a house in Shelburn Falls today and was setting up in a shot in the billiard room. I racked the balls and was surprised to see an extra one.
It is called the J R Training Ball, and even though I used to hang out in pool halls a lot as a kid, I have never seen one. It is graphically beautiful. I want one.
I looked online and found out they are for sale and are named after Jim Rempe. Here’s what I found out about him.
Jon Crispin's Notebook 
Very interesting article. Who knew? The object is very ‘striking’. 😀