1994 d penny

Sguidry21

The rim is uneven and round. Letter nearly visible
?? Thoughts

Oldhoopster

Try this link for a good explanation

http://www.error-ref.com/?s=Dryer

Sguidry21

Thanks

Oldhoopster

It looks like a dryer coin or something similar where the coin tumbles causing the rim to curl over and the surfaces take enough hits to wear down the devices. It did not leave the mint like that and is not an error

Hemispherical

Washed and dried... money (coin) laundering.