Toy Building Block

FIG. 1 is a perspective view of a toy building block showing my 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 view thereof.

FIG. 7 is a bottom view thereof.

FIG. 8 is another perspective view, shown in an open configuration; and,

FIG. 9 is another perspective view, shown in an open configuration.

The broken lines throughout the drawing figures depict portions of the toy building block that form no part of the claimed design.