Hello, I recently came across a 20 dollar bill and the serial number bleeds through to the reverse of the bank note and I was wondering if this is rare and what the estimated value is. I don't own a nice camera so the bleeding of the serial number is a bit stronger. Also under the top left serial number it says F6 in black and that bleeds through as well. Hope to find out what this might be worth or if this is a common error.
Thanks,
Vincent