FIG. 1 is a left-side perspective view, taken from the front, of a stapler base embodying the present invention.

FIG. 2 is a right-side perspective view taken from the front of the stapler base.

FIG. 3 is a left-side perspective view taken from the rear of the stapler base.

FIG. 4 is a left side view of the stapler base.

FIG. 5 is a front view of the stapler base.

FIG. 6 is a top view of the stapler base; and,

FIG. 7 is a rear view of the stapler base.

The portions of the stapler shown in broken lines are for illustrative purposes only and form no part of the claimed design. The side view opposite FIG. 4 is a mirror image of FIG. 4 and is not shown.

The broken lines shown adjacent the shaded areas represent the bounds of the claim and form no part of the claimed design.