Below is an excerpt from "The Story of Gasoline" (1927) produced by the Bureau of Mines "Pittsburgh Experiment Station." This clip is about 3 minutes, with ragtime music added. The entire film is 43 minutes.
I wonder if the filling station in this clip is the Pittsburgh original -- the world's first? It doesn't match the image from 1913, but that one doesn't look like it would have lasted into the 1920s, and this one is similar in terms of the orientation to the road.
Did a trolley once run up Baum?
Here is the entire 43 minutes on YouTube. Worth making the kids sit through.