I have three of these, Mark, and I assume they're replicas.
A true original would be as scarce as hen's teeth.
I think the giveaway is the pristine condition. Crisp & clean,
no rusty staples, etc. Equally important, no handicapper/bettor
annotations. No doubt, Abby Sciuto could prove that paper wasn't
made in 1962.
Just compare it with your other 50-year old programs (I understand
you have a few) 
