I don't look at dimes and nickels yet but I found this in my Penny's 1982p dime The edge is completely different than a regular dime. help. .
The acid eats away and leaches the metal out, especially the copper. It also makes the surface rough and porous.
Anytime. It is good that you keep posting coins you have questions about. Keep on searching and continue to post. :smile
It's slightly corroded. Coins found at the beach or in slightly acidic soil, such as where pine trees might be growing, will look like this dime.