Is there anything going on with the collars of either of these dimes (both dimes are shown with their respective obverse and reverse) or is this just post-Mint damage. Thanks for the help!
The 2007 dime looks like pmd, the 2000 dime looks a little off center punch. Also the zero's in the 2000 look off
For the record, coins do not have collars. What you are referring to is called a 'rim'. The collar is located on the coin press.
I have somthing kinda like that but its a quarter weirdest thing I have seen no rim and no reeding all around where the rim would be is flat and smooth