Duster Rear-Defroster/Defogger?

i do belive the switch remained in the same location until the end of the a-bodies in 1976. the switch changed in looks somewhat around 73? to a chrome benzel. prior to this it was black with white lettering. this pcture is from a 1973 brochure showing the switch (red arrow) and the electric rear window defroster embedded or placed on the glass. hope this helps some...

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