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American service station. Don't know where, but it's 1965. View full size.
American would not have been in Illinois: the brand for Illinois and Wisconsin (and several other states) was Standard, although after a certain point, the company sold "Amoco fuels."
Thanks for the tip, carpwoman! Looking at Lemont from the satellite view makes me think that's a good possibility given the similar terrain. My Uncle lived about 50 miles East of Lemont in Valparaiso, Indiana and took trips across the country.
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