Me too!I'm sure it is possible, Mark, and I don't doubt it.
I know the barcode was invented and used as early as the 40s and 50s, but I've always thought a hat with such a label was much more modern than the 70s or 80s.
Again, I'm not necessarily questioning the date of the hat, but more my ignorance of such a label.
I know Reggie @Dlaniger has many of these Stetsons with such labels. Hoping he amongst others can enlighten my ignorance.