The guy had a mish mosh of paper spread among several long boxes (magazines, comics, newspapers etc). I pulled out a few comics, nothing spectacular, which were $3. I was about to leave, when I took another look at a box that was primarily magazines, and there it was. After picking my jaw off the ground, in the calmest voice I could muster, I asked the gent how much - "Oh that one's old - $5." I quickly handed him $5 and skedaddled.
I came back to look through the boxes again and ask the guy if he had any other comics - he told me he had 3 others like that "old one" I had bought, but he sold it before. So I guess if any Action 1s come on the census, we will know where it came from.