Well... good luck! At least you didn't overpay... by... to... much.

The Peugeot one looks interesting, possibly the oldest of these. Adga, Club, and probably #4 are bottom barrel French saddles, terribly cheap, but if you can get some use out of them then no complaints.
#5 , Sport? Does the stamp include a stylised greeting of a guy on a racing bike? If so, that's a Czechoslovak product, OEM on Favorit bikes in the 60's-70's. If that's what you have, I'd consider supplying the missing nose hardware from one of the junk French ones.

Good luck, again....