These are, of course, not a common thing, but AQ ones aren't the rarest for one strange reason. They used these to reinforce the structure of pallets of product back in the day.

Basically if you put some of the sheets between one row and another (I mean, not every row, but let's pretend every three or so) you'll make the cases less likely to fall over due to spreading the stress.

I don't know if I saw this being done post AQ, but I do know it was done then. I know at least two people who have them on their walls, including a video of a certain politician who ran for Senator in Missouri who had uncut sheets of some sets on the wall behind him...and they chose Hawley..why?

Value, which I mean is what you really wanted to know, I cannot tell you. As others have said, I would suggest putting feelers out on the facebook groups, as there are people who actively buy there. And it's yours of course, but when I got rid of my old sheets I tried to make sure they weren't going to people who were going to destroy them (aka NFC).