Billups Neon Crossing Signal

The Billups Neon Crossing Signal was an experimental grade crossing signal installed at a dangerous Illinois Central crossing on Mississippi Highway 7 (now Mississippi Highway 332) in Grenada, Mississippi. The signal was installed in the mid-1930s by inventor Alonzo Billups over growing concern due to numerous collisions at the crossing involving trains and motor vehicles.

Source: Wikipedia — Billups Neon Crossing Signal (CC BY-SA 4.0)