Knock Box

FIG. 1 is a front, right and top perspective view of a knock box, showing my design.

FIG. 2 is a rear, left and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof.

FIG. 9 is a front, right and top perspective view of the knock box in use; and,

FIG. 10 is an exploded perspective view thereof.

The dashed broken lines depict portions of the knock box that form no part of the claimed design.