Interesting story on these books.  I'm selling these for my brother who back a decade or so wanted to "invest" in something cool and fun.  I suggested comic books and gave him some titles and issues that he should look for.  He dutifully scoured ebay and bought up as many books as he could find on "my list" and squirreled them away.  He asked questions along the way about PQ and the like, but mostly if it was on the list,  (Or in some cases if it wasn't but seemed like a good deal), he scooped i