Seat upholstery for 28 phaeton

[johnbuckley]

Recovering the seats to original spec is on this year's list...
Jim Schild's book says "single seam running laterally approx 1/3 of the the way back from the front of the seat" 1) Is this what the rear seat should be like too? 2) Did the back rests have any seams? Could someone post a pic of correct style front and back seats so I know where piping and seams go etc. Many thanks in advance