Dime 2001 Roosevelt 1 1

[Wayne0810nv]

What is this error or is it I haven't any coins that are like at all

[Greenstang]

Welcome to the forum

That is not an error, it is damage  (PMD). There is no way for that to occur when the dime was struck.

[Coinbuf]

Not an error,  what we call a dryer coin.   Coins sometimes get stuck against the barrel of the dryer and scrape or sand off one side like this

[powermad5000]

Definitely not an error. I agree with @Coinbuf that is a dryer coin. The rims got mostly worn off as well. It also looks like it may have suffered some mild heat damage as well.

[RWB]

Damaged in both posts....