Sioux Refining was in operation from 1939 until bought out in 1968. It was based in Newcastle, Wyoming.
The lenses are from a gas pump globe. They would fit in frame made of glass, metal or plastic and mounted on top af a vintage gasoline pump. For more about gas globes see A Touch of Glass
This article explains the different styles of gas globes.
[This message has been edited by Jim (edited 12-01-2000).]