I discovered this dime while coin roll hunting. I am terrible at identifying error coins so maybe the experienced experts can lend me a hand. I can only make out the 20 and not the rest of the date. The mint mark is "D". The look kind of reminds me the wear from Mercury dimes from the 1920's. Thanks Here is the obverse Here is the Rim It is really thin and it does not have the notches as a regular dime has.
