I wasn't refuting the double tag scenario.
You stated
"The tag was held on by a screw in the rearmost hole on the tag, and the other screw to fully hold down the tag was installed later after painting".
Single tags were bent up on the front corner and painted and then the rear screw was installed un painted. The double tag scenario makes sense because it would be faster and simpler on the line. For every single tag that has both screws painted there a thousands of tags with the front screw painted the tag bent upward and the rear one not painted from that factory. That's what the original post was asking and now he has the answer.