It sure looks good to me. If it's a repro it's the best repro I've ever seen, and although I'm no expert on these things I think the chances of it being fake are extremely slim. Does anyone even know how to reproduce iron pontils? I don't think I've ever seen one on any modern glass.
I've never seen a repro with a real iron pontil like that. It's absolutely real. I don't have the McKearin and Wilson at work, but I'd certainly put that neck finish in the west, Pittsburg, WV, Ohio....