I got the two coins out of a grabbag. The Mexican coin has a huge gouge in the center on one side which still managed to get die hit, and the other is weak die both sides. The first is a 1960 cinco centavos coin. The second is Austria 10 heller barely visible. Any idea the worth of these?
The Mexican coin appears to be a lamination error. I cannot tell from the photo whether the piece fell out before or after striking (the raised line will help determine that.)
The Austrian coin appears to have been "struck through" a piece of cloth in the machinery, or it could have been stuck with a greasy die. Is it full weight?