I know it’s an early car by the VIN, but many people didn’t/don’t know that head restraints were still listed separately until 1/1/69. My 10B (Oct. ‘68) ‘69 W-31 also has them listed that way. And, I had a car that was originally sold to a Naval Officer who’s address was aboard a ship. I’d have to dig up the records, but I do remember it being odd.