Just for fun, I asked the OilHistory group to which I also belong if they could identify that line of little oil tanker trucks that appears in the Amboy photograph. The answer comes from Australia: most likely Illinois Farm Supply Co., makers of Blue Seal Lubricants. The company survives as Growmark FS and operates various oil terminals and service stations in the Midwest.

Hey, you have your specialty, Oil Historians have theirs.

Now, to figure out what kind of turtles were served in the bar. Hopefully not the Teenage Mutant Ninja variety.