[luciobar1980]

Originally Posted by EddieP

This explains it well:

http://www.keymancollectibles.com/exhibitdatechart.htm

Cool! Looks like mine is the 1960-1961 era reprint.

And, it may be semantics, but I don't think calling it "fake" in this case is correct. It's not like it's a counterfeit.