This design was used in 1993 and 1994 and is less common than the other styles.
A case with slight variations to the one above.
This design, featured in the top thumbnail on the left, was used in 1993 and 1994 and is less common than the other styles.
There were multiple slight variations to this case such as some including a key lock, or having the vents slightly changed - shown in the bottom thumbnail on the left.