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Washington, D.C., circa 1928. "Hedges & Middleton. Sullivan & Helan Co." Service station at Sixth Street and Rhode Island Avenue N.W. Note the traffic light with bottom lens labeled "GO." View full size. National Photo Co. glass negative.
FWIW, that is a Crouse Hinds TSV-11 'porthole' signal. The other indications would have been Red-STOP, Yellow-CAUTION and of course Green-GO.
I see signage for 3 different gasoline brands, Sinclair, Esso (now Exxon) and Texaco. Even at 25 cents a gallon, they gave you a choice. I assume that today's gasoline vendors have to sign an exclusive contract to get the stuff. Though it's not unusual now to see new-car dealers selling a half dozen different brands.
What is a weed chain? A brand perhaps?

Toot-An-Kum-In ... car culture embraces Egypt.
