The flat top that gives the signal its name.
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Classic Marbelite "tunnaway" visors.
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Another Marbelite feature is how the visors are mounted. If you click on the profile photo to bring up a larger image you will notice that the mounting tabs are riveted to the visor. (The tabs are usually a part of the visor.)
Marbelite also offered a true green also called an emerald green lens. Most green lenses are really blue-green to assist drivers with red-green color blindness. A few manufacturers offered true green lenses in their earlier signals. This flat top has a Marbelite 6540 true green lens that would have been available in an earlier version of this signal. |
No. 6540 green lens.
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Back of lens showing pattern.
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This particular housing design s a TD-19413. A later revision, stamped TD-19260, was designed with indented tops and drain slots to more effectively prevent moisture from entering the light. Eventually Marbelite produced the model TE-19408 housing that was better designed to accomodate backing plates, and Marbelite also offered a more conventional cutaway visor. Both the later version of the TD-19260 and the earlier version of the TE-19408 housings can be viewed together on the Marbelite 5-light Dog House signal.
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