Bulova Advertising Clock - Mid Century Modern

Reclaimed from a shop floor, this one cleaned up nicely. While still incomplete (sweep hand), I replaced the fluorescent lamp ballast, power cord, and lamp tips to make this one glow brightly at night. I imaging this was quite the apparition in 1947 or so, when the numbers appeared to hang in mid-air.
The date on the clock motor is 12-1947, but beyond that I can't put it's age on the money. I don't know if the motor was replaced prior to it's home here. The wire was loom (cotton) type, the tube used to be starter type.
It's aluminum with a plexiglass face. The brass motor is labelled C5.
The logo is back-lit with florescent and the face and face outline glow from the tube above.