Oh, you were asking about the historic Dr. Faust... I thought that was the name of the deck. Yeah, I've heard some people talk about the deck he may have used, I don't think there is a consensus though. Check out
link 1 and
Link 2 as they are really informative sites about the Tarot and the history of the designs. I think there were only 7 decks that were produced before and during the historic Faust's lifetime, you'll find them listed in Link 2 (under Key Pages> Tarot Decks> Tarot Decks by Date). Good luck, let me know if you manage to find a place that sells these as I could use a new deck myself.