Vana'diel Bestiary: Tucker  

Tucker will only give you this opportunity after you have begun the Scholar Flag quest.

Tucker : So, you're (Name), right?
A little bird tells me you need sheets of vellum.
Tucker : Well, okay, it wasn't a little bird. It was Professor Ulbrecht, the loony in the tomb.
He said I'd be getting a visit from a lady called (Name).
Tucker : And shave my moustache if he wasn't right.
Anyway, I might be able to help you with your little task.
Tucker : Of course, it ain't gonna be for free.
Tucker : Here's the deal.
I give you one sheet of vellum for every twelve rolanberries you bring me.
Tucker : I'll take up to four dozen at a time.
That means four sheets of vellum for you.
Tucker : With the way those scholars go through 'em, sheets of vellum are a gold mine for traders right now.
I'm letting them go for cheap, if you ask me.
Tucker : I'll be right here when you're ready to trade the goods.