Just how “rare” are these surveys supposed to be? Unlike Mark Jewelers inserts, these are thin and you can’t tell if there’s an insert by feel. And you can’t tell from the top, side, or bottom. Basically, you need to look in the comic to find it. Who knows how many are out there undiscovered?
I wonder how the surveys were distributed, were they limited to specific markets or were a small percentage widely distributed? FWIW, the five that I have were bought in a comic shop back in the day.
Oops! Sorry for the duplicate posts.