Barcode Question

I have the model T. So I noticed the barcode wasn’t the same on the authentification page but then realised the barcode was a sticker. Underneath was the barcode that was the same as on the site. On all pictures of the box that I have seen, I have never seen any mention of this other barcode sticker covering the other barcode. What is this. I bought straight from Trezor. Also, the plastic packaging of the box was slightly damaged.