Didn't you have a hanging sleeve that was a clue as to which way it went? BTW, I have also started making my labels diagonal. I saw in a magazine somewhere where the quiler had added it in to the side seams with the binding, much like you would catch a hanging sleeve. But I DO put it on the lower left ( looking at the back) corner in case I want to show it. I also have been putting them on what would look like upside down if you orientated it to the top of the quilt. But if a white glove lady flips it up to show someone, it reads right side up!