Posted By:
runscottSo PSA mis-labeled it - what a surprise.
I think the difference between your Kling and the "notebook cover" cards, is that yours is on card-stock and doesn't have the outside border the notebook cards have.
The goldish border was cut off of most of the notebook cards, so they have a rather thin white border. Your Kling was miscut enough that I think that some of the gold border would have shown up if it were actually a notebook card.
There is no law that says a proof has to have cross-hairs, or that it can't have writing.