I am curious whether this is die erosion or DD.
Thank you so much.
When you see the doubling running towards the rim rim like that, it is usually
caused by Die Deterioration (erosion).
@jjfred55 - Have a read. Some good info on DDD here..........https://www.lincolncentforum.com/die-deterioration-doubling-ddd/
"When they can't find anything wrong with you, they create it!"