This is the Motorcraft  Electronic Voltage Regulator from a 1979 Mustang with 36k miles on it.... Many other Ford products of the time used these regulators.

Overall in good condition.. still retains most of it's original plating and color.. Has surface rust , as shown, along one edge of cover.. included are the mounting screws.

see pics for more details... ask questions prior to purchase... 

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Shipped out FAST!!