The long seat is from a Jawa, looks great, nice and cushy, very clean and wonderful! Could probably fit two people if you're slender. Comfortably fits one very large person.
....and a Stock Peugeot 103 seat, also in near mint condition
Make me an offer.... I'd prefer not to have to ship them, so pick up is preferable, but if the offer is right I'll make a box to fit either or both of them in.
here's a picture of the bike they were mounted on... the long seat was mounted backwards as a buddy seat, you can see it's long enough for two people.
what you see is what you get!