John 'n' W.Va
Active member
The old man told me a guy made them that worked at O.I. glass. The guy didn't make them, he appropriated them from work. My maintenance man( aka marble expert) told me O.I. made them for gas driers. Ones in the gas and oil fields. We have lots of gas wells around here. They were made from Coke glass because that was their main product at the plant. They were crudely made. They would be housed in a tank with some anti-freeze stuff. As the gas would flow through it, the marbles would take the moisture out of the gas.
[attachment 75119 12-1-07marbles.jpg]
[attachment 75119 12-1-07marbles.jpg]