1968 Barracuda Deluxe Seats: Carpet or Vinyl back panels?

On 68 the only challenge I have with the all deluxe seatbacks have carpet rule is: White seats! I totally agree with the deluxe seats having carpet rule. However with the two tone White seat and Blue, Green, Maroon, yes even Black two tone ALL I have EVER seen is the white vinyl backs. Can some one with a 68 deluxe two tone seat (again combinations are white seat and Blue, Green, Maroon, or Black) confirm carpet or vinyl seatback. They never made white carpet so I say they went with WHITE VINYL in ONLY those Deluxe combinations. Please someone prove me wrong... Thanks!