Oklahoma of Chicago, Illinois used coupons instead of stamps
Lone Star of Chicago, Illinois
Note that Oklahoma also lists there Road King stations another Chicago area discounter.

I find that gas station trading stamps were used more in the mid-west than other areas..

I am sure there are numerous other brands, dealers, jobbers, distributors that had stamp programs.

That all folks,

Dave

Oklahoma coupons.jpgOklahoma Prize Book 1953.jpgOklahoma inside.jpgLone Star coupons.jpg