Thats a good idea. Thanks!Th3Offspring said:I'm assuming you have clear plastic wrappers. If so, this may narrow down which "dirty" or "white" coins you check. If you haven't already thought of this and i apologize if you have lol, take a strong magnet to the rolls and if you feel any attraction at all with the white coins then you know they're obviously Canadian. While not all Canadian dimes are magnetic, this will eliminate most i believe.