Exit Sign by Western Fluorescent Light Co., 1950s

Western Fluorescent Light Co., 3242-4 W. Roosevelt Rd., Chicago, IL [Homan Square]

Research is underway on this one and a full write-up will be coming soon.

One thought on “Exit Sign by Western Fluorescent Light Co., 1950s”

How does the glass glow in the dark on these signs after being exposed to light? Do they use a radium paint, or some other radioactive substance?

One thought on “Exit Sign by Western Fluorescent Light Co., 1950s”