Building block

Description

FIG. 1 is a front, left and bottom perspective view of a building block, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and

FIG. 8 is a rear, right and bottom perspective view of the building block with an unclaimed lid shown in a state of use:

FIG. 9 is another front, left and bottom perspective view of the building block with an unclaimed lid removed; and,

FIG. 10 is a front, right and top perspective view thereof.

The broken lines shown in the drawings illustrate portions of the building block that form no part of the claimed design.

Claims

The ornamental design for a building block, as shown and described.