Like Don said it was a special order for paint which carries a six digit DSO code this one being 711567. 71 is L.A. District, last four digits 1567 was the special order number. The records for the special order cars were kept by each Order District some might still have the records. I tried to track down the records on my 73 Vert that was special order paint and some other items that cannot be read on the build sheet. They had been destroyed in the Detroit District that my car was ordered from. The extra cost on my car was $99.95 to paint it black. If the owner has the build sheet it tells what is special on there. There were quite a few Special Order items. Could be paint, a trim option not offered in the showroom brochure, sealer delete for building a race car, glider (no drive train), different wheels etc.. Ford would do about anything you wanted as long as you paid for it and it did not interfere with safety or emissions.
I do not know if they could have got the quarters changed or not could be possible. Would require close inspection of panels to see if replaced or factory.