General message to all poster hypochondriac's, if the poster has never sold for more than $15 or $20 no one is going to take time to find passable paper to make reprints and pay to have them run. Digital age of print on the fly, the paper and printing will give it away, something like this, no way in hell someone is going to invest the time and money to make $100 off $1000 investment with a long time turnaround.
This hobby has a bad rep for restrike/reprint/ re-whatever due to the few bad seed titles that exist, in GENERAL, you should assume original and not assume fake to be proven original. Normally size and print quality is still going to give away 90% of anything that is not legit, most of the other titles that are not in the digital repro category have already been outed for what they are.