I say AU 53 if it straight grades. That's a tough cookie to acquire! The scratches are in a random sequence so maybe they give it a pass from circulation, in other words it doesn't appear to be systematic intentional wiping. I've seen PCGS straight grade coins with more trauma. It's a nice coin considering the rarity in that condition. Oh, and one of the "scratches" through the date isn't a scratch, nice die crack.