Portion of a paint brush handle

FIG. 1 is a front view of a portion of a paint brush handle showing our new design, the rear view being identical thereto;

FIG. 2 is a right side view thereof, the left side being identical thereto;

FIG. 3 is a top view thereof;

FIG. 4 is a front view of a second embodiment of the design that is shown in FIG. 1, the rear being identical to the front;

FIG. 5 is a right side view of FIG. 4, the left side being identical right side;

FIG. 6 is a top view of FIG. 4;

FIG. 7 is a front view of a third embodiment of the design that is shown in FIG. 1, the rear being identical to the front and the right and left sides being identical to the side that is shown in FIG. 5;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a front view of a fourth embodiment of the design that is shown in FIG. 1, the rear being identical to the front;

FIG. 10 is a right side view of FIG. 9, the left side being identical to the right side;

FIG. 11 is a top view of FIG. 9;

FIG. 12 is a front view of a fifth embodiment of the design that is shown in FIG. 1, the rear being identical to the front and the right and left sides being identical to the side that is shown in full lines in FIG. 10; and,

FIG. 13 is a top view of FIG. 12.

The broken lines are for illustrative purposes only and form no part of the claimed design. The broken line that defines the top boundary of the claimed design in FIG. 12, forms no part of the claimed design.