Found this 2021-D Jefferson nickel the other day. Looked very off. Compared it to a "normal" 2021-D and, well, you can see for yourself. It's slightly smaller than normal, weighs 4.9g, has rounded edges (which is actually what I noticed first) and has a very "sand-blasted" sort of finish. You can see the IGWT extending over the obverse's edge - same with the EPU and USoA on the reverse so I don't think this was done post-mint . What do I have here and would something like this be worth having graded?
IGWT is not hanging over the edge at all. It’s just the opposite. The rim has been peened over the motto as evidenced by the rounded edge. Study the coin making process and you would understand how it is impossible for a coin to leave the mint with a sand blasted finish or a rounded edge. This is simply one of tens of millions of post mint damaged coins that are in circulation.
Look at the neat illustration in this thread: https://www.cointalk.com/threads/2005-penny.414728/#post-25742016