Pony Express Poster - Real or Reproduction?

[hombre_de_plata_flaco]

I had a guy who ran a printing press for 13 years look it over, but he really wasn't sure. Has anyone here seen something like this?

Sorry about the poor photos. This thing is hard to photograph without getting a really bad glare.

 

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[hombre_de_plata_flaco]

Never mind - I think it's probably a repro:

http://store.ushistory.org/showitem.asp?iid=230