I just bought Michael Golden's GI Joe Yearbook Artist Edition Portfolio from IDW. For the uninitiated, IDW has a line of books called Artist Edition, which reproduces comic artists original art for a specific artist's, generally collecting six stories. For example, there was a John Romita Spider-Man Artist Edition.
The portfolio line isn't a book but collects a original art from a single story in a hardbound folder.
It's fantastic looking!
According to Scott Dunbier at WonderCon, the person that bought the entire original pages had them restored. The wordballoons were originally pasted onto the pages but were removed and placed on an acetate overlay so you can see it lettered and unlettered. For the portfolio, one side is lettered and the other side of the page is not. It's pretty neat!