I have a friend that last year sold a 1966 A Code GT SJ Fastback with about 41,000 original miles. The car had all it's dated coded sheet metal, engine components, emissions, transmission, rear end and original window sticker. The proposed build date for this car was sometime in October 1965 with a 71 DSO. This car was purchased with Westinghouse FOMOCO script headlamps of which I believe were sold new with this Mustang. I offered to trade him some original GE FOMOCO etched headlamps before the sale of the car but he said no.