A week before Christmas I found one on eBay that looked pretty nice, was not too expensive (about $24 IIRC), claimed to be original and came from a dealer with near perfect feedback (lots of it).
The pin arrived the other day, I pulled it out and it looked like this:
The scan doesn't do it justice. It's shiny and just perfect. Flawless celluloid surface. I thought it was the nicest 40's era pin I'd ever owned. And then I turned it over. Again, flawless. And that's the problem.
I was contacted by the seller today (Monday) and he provided me with enough info and a backstory on his pins that I'm pretty sure the pin is original. Looks like I made a pretty good deal.