I am a fan of the movie "O Brother where art thou," and watch it many times. The last time I spotted a mistake in a gas station scene.
The movie takes place approximately in the mid-1930s, during the time of the building of the Tennessee Valley Authority.
After Delmar becomes a frog, Everett and Pete are driving Baby Face's car and they stop at a gas station.
The scene starts on the left side of the station where you can see the two visibles, then moves around to the front of the station. Now you can see what is on the right side of the visible. It is a 1947 ECO Model 98 Tireflator.
Author, Gas Pump Identfication books 1st & 2nd Editions & Air Meter Identification books
We rebuild ECO air meters and sell parts.