Source: Ravelings (1946) Ad:

CENTRAL OIL CO.
721 W. Main St.
North Manchester, Indiana
Phone 555
Here Is the Place To Get Your Car Needs

Source: Ravelings (1947) Ad:

CENTRAL OIL COMPANY
701-703 W. Main St.
North Manchester
Phone 487 or 555
For High Grade Gasoline--Motor Oils--Fuel Oils

Source: Aurora (1950) Ad:

EVERYTHING FOR YOUR CAR
Truck or Tractor
METERED AND TICKET PRINTED
Tank Wagon Service
ONCE TRIED
ALWAYS SATISFIED
CENTRAL OIL COMPANY
Phone 555    701-703 W. Main