most people get all excited about finding nickels the Nox is no exception in that it finds a lot of them MOST, not all fall in the digit 13. So i got out about 150 gold rings just to see where some hit. Ive attached the photos.... of the 3, yes 3 rings that hit as a nickel 13. Ive also attached two other photos....... one is digit 14 pull tabs and the other .... bottle caps 15. I thought this might hold some value for those who like to disc. By the way....there were 9 rings that fell in the 12 digit.....for the most part deep or broken tabs.