It is for the super cool bowling ball pictured. It has scratches and scuffs from use. These are my best guesses: thumb hole (7/8"), middle finger hole (3/4"), ring finger hole (5/8"), and span (about 2-1/2").
VTG Brunswick Score King Bowling Pin - ABC Approved Score King - Red Crown Pin
Used ~ Vtg BRUNSWICK ABC Mixer Bowling Pin No. 5
Brunswick Viz-A-Ball Bowling Ball, 11 lbs, Eyeball Pattern
Vtg 2000 Warner Bros Taz Brunswick Bronze Metallic Flake Bowling 8 LB Ball & Bag
Brunswick 50 Score King Bowling Pin ABC Approved Plastic Coated 15” Pin VTG
Vtg. AMF Tournament Bowling Pin Sporting Team Sport Permit No. 42 ABC Approved
