AMF 3 DOT

A hard rubber ball popular in the “old days”. It was solid black with three white dots above the bridge. Often used by bowlers to describe how a shot hit the pins if the reaction is poor. i.e., “the ball hits like a three dot.” This is to not degrade the ball, it was one of the best; it is that times have changed and hard rubber is just not effective on most lane conditions of today.