Originally Posted by
Dirtdrop
I suspect that a lot of the people that tell you that French bikes are a nightmare to deal with are only saying that because they read it on the internet.
+1. I, too, believe the frame is later.
That said, investigation is in order. Take a look for tubing stickers. If it is labeled as "HLE" or "Carbolite"
I would just avoid it. Both have 24mm seatposts, not easy to replace.
Seatposts for Peugeot frames built of other tubings can easily be found.
If the fork is original, it is likely a better Peugeot. Later decent models sometimes came with an all chrome fork.
No offense to the many fine LBSs out there, but most bike shops know about as much about French bikes as they do about Flying Saucers. They will, however, be happy to share their ignorance with you.