Toy building block

Description

FIG. 1 is a front, right and top perspective view of a toy building block, showing my new design;

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

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is an enlarged left side view thereof;

FIG. 6 is an enlarged right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

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

Claims

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