That illegible axle assembly build date would have been somewhere between the 3rd member assembly date of 10/23/68 and the actual build date of the car, about mid-November, 1968, since the car arrived at the dealer in late November. The SPD was 11/8/68.

03 Rear Axle19.JPG03 Rear Axle20.JPG

If you don't see two dolphins, you need a vacation.