Door sticker

A friend just bought a 72 Scamp, and I was looking at it, and noticed that the black, and silver decal on the drivers door, that is supposed to have the date of manufacture, and the vin number, and the gross weights is blank without any info on it at all. Anybody ever run across this before, like a factory bobo?

My 74 cuda is like that some of it you can barely read. The ink must fade