The COA for my 67S doesn't state any seat option, but currently the seats are equipped with head rests that are mounted on two small notched posts that extend down into the top of the seat back. The seat back hinge parts are painted, not chromed. I just have'nt been able to find a picture of a head rest equipped 67S. I have seen pictures of 65 and 66 head rests which are round in cross section and are mounted by curved chromed brackets which are then mounted to the back of the seat back. Is this correct for 67 also? Thanks Wolfgang