The picture doesn't show a sloping crown fork, but the text says it had one. I read that some '74 Carlton-built Raleighs had serial numbers beginning with "A", so that must be it.
I see that it had my favorite crank, a T.A. professional 3 pin. There was a triple version, but I've never seen one.
You'd think they'd straighten the valve stem for a catalog picture.