Ok I got another picture of a couple of other balls I have, One is my dad's Ace Limited, the other is an Ace Pro seen here:
https://www.facebook.com/photo.php?fbid=590292560993092&set=a.236630996359252.59616.100000370600381&type=3&theaterThe neat thing about the limited apparently is that the logo is not a sticker according to my mom. She said she worked there for a while and that limited logo is essentially a pin, its not etched in or a sticker. She said she used to put them in, which was neat to find out. The Pro according to Dad would basically be a house ball today.
According to my Dad they still made bowling balls until the late 80's maybe early 90's. They produced balls for both Ebonite and Brunswick up until that point apparently as well, but from what I can tell it was all plastic.
Apparently they were fairly expensive balls at the time with my dads costing roughly 35 dollars in 1971. Mom said hers was slightly cheaper being it was plastic and not hard rubber. You can see the core material I was talking about earlier and found out that the Hard rubber was a shell just like the plastic.
My Dad also said as far as he ever knew, the plant in Booneville, Arkansas was the only plant that ever made bowling balls, so if you have one, thats where it came from. He said the company made a ton of money, but that eventually their quality got to be so bad they were tossing as many as they were selling. Apparently they had far more orders than they could ever make and it caused huge issues and eventually led to their demise. He said they were hugely popular in Japan, with just about as many being sold there as in the states.
Dad said mine and a few others he's going to look for were ones picked out specifically by my grandfather because of their balance when they closed the place up. He said they literally buried thousands of them, and people even took them home for things like doorstops, and he said he even saw someone use them to make flower beds.
Basically they couldn't keep up with demand, and when the Pro's started wanting exact certain measurements and stuff they just got a bad name in the industry.