Scopa with Salisburghesi Cards?

I learned how to play Scopa using Napoletane card but recently I've been collecting the different Italian cards from the different regions and I think for the most part they are easy to figure out which card is which. Then I came across the Salisburghesi cards and am completely confused. The cards start at 5 and there is no ace but a 2, which I'm guessing is the ace? But then does that mean the face cards are worth 11, 12 and 13 instead of 8, 9 and 10? Is anybody able to explain the cards for me please?