This is a simple, unabraded die clash that affects both the obverse and reverse dies. Notice the slight rotation to the clash mark (3°) which is common.

This coin is in the collection of Joe Koelling.

For a good indicator of which die clash that you have, use the roof line in conjunction to where it intersects the 1 digit of the date. In this case, the roof line is at the lower end of that digit.