So thats what it is !! thanks guys, as I was taking those photos the owner was convincing me of what a rare factory ford he had, har har, personally I wouldn't chop the car up, especially when you end up with such a gross looking trunk lid.
Ford did make one of those a retractable, I am not sure if thats it.
But they decided it was not cost effective. I recall seeing pictures of it back in the 60's.