The ornamental design for a mandibleshield, as shown and described.
FIG. 1 is a front perspective view of a mandible shield showing our new design and coupled to an optional helmet;
FIG. 2 is a front perspective view of the mandible shield shown in FIG. 1;
FIG. 3 is a front elevational view of the mandible shield shown in FIG. 1;
FIG. 4 is a rear elevational view of the mandible shield shown in FIG. 1;
FIG. 5 is a left-side elevational view of the mandible shield shown in FIG. 1;
FIG. 6 is a right-side elevational view of the mandible shield shown in FIG. 1;
FIG. 7 is a top plan view of the mandible shield shown in FIG. 1; and,
FIG. 8 is a bottom plan view of the mandible shield shown in FIG. 1.
The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines, including the stitching lines having a longer dash than the other broken lines, form no part of the claimed design.