Ha! I love this stuff!!!!
But we are not speaking of Classic (a tiny reissue label), things were handled differently back when record companies had their own plants
What I do know is that there were certain specific styles of WLP's
Plain white test labels
Pre printed generic test labels
Pre printed generic advance labels
Title specific advance WLP labels
Title specific WLP labels, the lingo can vary depending on purpose (ie DJ promo)
.
What you are doing is taking a leap of faith (based on???) and not looking at what is being presented in black and white. You may well be right, the pressing operator may have grabbed the wrong label....no way to prove your theory. Again, I present what we have before us and can only list it as it is. To do otherwise is just conjecture. We can only see it as what it shows, unless we can speak to the parties involved.
Advance Promo....no other way to prove it otherwise.