Okay, thanks! So the outer ring is a 52, the inner is a 42, and I'm guessing that the middle ring is a 47, or maybe a 46. It's what I have always thought of of as a "psychological triple," which combines a half-step double--lots of closely-spaced high gears--with a low gear that's the same as what you'd find on a typical racing double. It gives the rider the comforting sense of having a triple, without any of the actual benefits of a triple. It doesn't even require a long-cage derailleur unless you're using a really big cog in back.

That said, it's a handsome bike. I have a TdF in the same color, with the same fork crown--likely the same year. Not sure about the geometry, because mine is a much bigger frame. Possibly it's the same frame as the Tdf but with different braze-ons? Pure speculation on my part.