I have copies of all the 71 B body stripe/paint engineering drawings. As I recall, they don't necessarily tell you when it is correct to apply the decals or stripes, but do indicate how to correctly apply them when needed.
Bottom line is some cars did not come through with the area behind the bubble painted...and I have many fender tags on file both with and without V21 for N96 cars.
Also, I have details for stripes that were never factory installed on cars (obviously discontinued before production).