I did the homework, I talked to my tech support at the local ppg dealer. The old number number is no good. 2183385 Exterior Air Dry Organsol Paint AF5DX8 Black

DDL9355 is still a mixable number.
Remember the texture of this is not as the stuff made in 1970, but close enough for most cars.

I am getting ready to paint a 1969 RR in all Lacquer...imagine that a car that looks like it's 1969 all over again. Cost is the same as BC/CC