Bill Quick saw this before I did, and asked: “Remember when filling stations actually filled your tank for you?”
For a few days in my adolescence, to help out a friend, I played pump jockey. I wasn’t especially good at it, though I was dead reliable at checking tire pressures.
And yes, E10 was around in those days. (Under that “10% Blend” verbiage: “Development Means Cornbelt Prosperity.”) It never really caught on, and purveyors of the stuff eventually sought antitrust action against Ethyl, manufacturer of another, far nastier, gasoline additive.
Interestingly, this photo was taken in Lincoln, Nebraska in April 1933, eight months before the end of Prohibition. I have to wonder how much of that ethanol was diverted before it got to the gas station.