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| This clock called the "Lighted Hour" was the model 500-U made by Haddon Products of Chicago in the 1950's. A light in the base casts a circle of light on the wall behind the clock that allows the clock to be read in a darkened room. The hands are enclosed in the space between two curved glass pieces, and the numerals and hour marks are silk screened on the inside of the front glass. It's operation is not much of a mystery, though. A motor in the base turns a drive shaft which runs up through a brass tube to the center of the clock where an enclosed gear train drives the hands. | ||
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