High quality sheet music

Greetings people,

I heard a few minutes ago that there are very high quality sheet music manuscripts/books for sale (engraved, high quality paper, etc). I want to get one for a friend’s birthday, but I have no idea where to find them. I suppose that good music stores would carry them, but I have no idea what music stores are good.

Edit: I’m in the Connecticut/New York area.

Not sure what sort of music you’re looking for, but if you can get into NYC, check out the Juilliard store at Lincoln Center.