Wide bodies with screw base used by Standard of Kentucky and Ohio (Sohio). Base should be same size as used on Standard crown globes. 6" inside thread and 7" outside base.
Thanks. That makes sense. I bought this from the same guy from whom I bought the bottom of a Standard Oil Dealer sign, so I'm sure they both came from the same bulk plant.
Collecting the Mississippi companies: Billups, Southland, Rose Oil,Crystal Oil, Barq's