We claim the ornamental design for a hinged backing apparatus for jewelry and piercings, as shown and described.
FIG. 1 is a front elevation view of a hinged backing apparatus for jewelry and piercings showing our new design, the rear elevation view being a mirror image thereof;
FIG. 2 is a right side elevation view of the hinged backing apparatus of FIG. 1, the left side elevation view being a mirror image thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a top perspective view of the hinged backing apparatus of FIG. 1 showing a stem being separated from a main body, and showing the hinged backing apparatus in a hinged position;
FIG. 6 is a front elevation view of the hinged backing apparatus of FIG. 1 showing the stem being separated from the main body; and,
FIG. 7 is a top perspective view of the hinged backing apparatus of FIG. 1 showing the hinged backing apparatus in a hinged position.
The broken lines showing the remaining portions of the hinged backing apparatus are for illustrative purposes only and form no past of the claimed design.