Hello,
My friend went through her dad's old bowling balls last weekend in search of a blue hammer for me. She didn't find the blue but she did find a 16lb. Black Rhino.
It's needs a resurface and has some minor cracking around the finger holes.
If there is an interest, please let me know. I can put it on the spinner and clean it up a bit. The photo quality makes it look brown but it is black. Message me with any interest.