Hi, I was checking some quarters, When I stumbled upon this coin with an unusual mint-mark, It likes like it might be a repunched mintmark, But I'm an extreme novice at understanding error and variety coins, So I'm turning to the experts.

Does anyone know if this is an error/variety, And if it's worth saving? I took two photos of the front, under different lighting (I have a lousy camera), And I also posted the reverse of the coin in case there was something I missed.
Thanks in advance for any help.


