Mounting Device

FIG. 1 is a top, left perspective view of a mounting device, showing our new design; FIG. 2 is a front view thereof; FIG. 3 is a rear view thereof; FIG. 4 is a right side view thereof; FIG. 5 is a left side view thereof; and, FIG. 6 is a top view thereof. The broken lines immediately adjacent to the shaded area depict boundaries of the claimed design and form no part thereof. The broken lines showing the remainder of the mounting device depict environmental structure and form no part of the claimed design. Portions of the mounting device not shown in the drawing form no part of the claimed design.