P/N Sticker on rear of Model F XT?

[engicoder]

I came across a Model F XT recently that has a sticker on the back cover that Iam  not familiar with. It is a small 3cm x 1.5cm paper label that has the P/N and some other digits as well as some handwriting. Was wondering if anyone has seen this before? I've seen NIB XT's without this sticker, so was wondering if it might be a refurb sticker or some sort.

Here are a few poor quality photos.

[hwood34]

Nah, that's pretty normal. Only on Model F's though

[engicoder]

Nah, that's pretty normal. Only on Model F's though

Ah, Ok.
They must commonly fall off of the years. I've had 10 or so and this is the first that had such a sticker.

[hwood34]

Nah, that's pretty normal. Only on Model F's though

Ah, Ok.
They must commonly fall off of the years. I've had 10 or so and this is the first that had such a sticker.

Yeah, I mean they're just paper, really easy to scrape off